151223100 has 144 divisors (see below), whose sum is σ = 505467648. Its totient is φ = 34191360.

The previous prime is 151223099. The next prime is 151223101. The reversal of 151223100 is 1322151.

151223100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (151223099) and next prime (151223101).

It is a super-2 number, since 2×151223100² = 45736851947220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 151223100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151223101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 224364 + ... + 225036.

It is an arithmetic number, because the mean of its divisors is an integer number (3510192).

Almost surely, 2^151223100 is an apocalyptic number.

151223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252733824).

151223100 is an abundant number, since it is smaller than the sum of its proper divisors (354244548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151223100 is a wasteful number, since it uses less digits than its factorization.

151223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 151223100 is about 12297.2801870983. The cubic root of 151223100 is about 532.7695300641.

Adding to 151223100 its reverse (1322151), we get a palindrome (152545251).

The spelling of 151223100 in words is "one hundred fifty-one million, two hundred twenty-three thousand, one hundred".