151223380 has 144 divisors (see below), whose sum is σ = 407554560. Its totient is φ = 46126080.

The previous prime is 151223357. The next prime is 151223383. The reversal of 151223380 is 83322151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151223383) 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, 1338204 + ... + 1338316.

It is an arithmetic number, because the mean of its divisors is an integer number (2830240).

Almost surely, 2^151223380 is an apocalyptic number.

151223380 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 151223380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203777280).

151223380 is an abundant number, since it is smaller than the sum of its proper divisors (256331180).

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

151223380 is a wasteful number, since it uses less digits than its factorization.

151223380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 151223380 is about 12297.2915717242. The cubic root of 151223380 is about 532.7698588837.

The spelling of 151223380 in words is "one hundred fifty-one million, two hundred twenty-three thousand, three hundred eighty".