151231400 has 48 divisors (see below), whose sum is σ = 353846400. Its totient is φ = 60108480.

The previous prime is 151231397. The next prime is 151231427. The reversal of 151231400 is 4132151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30281 + ... + 34919.

It is an arithmetic number, because the mean of its divisors is an integer number (7371800).

Almost surely, 2^151231400 is an apocalyptic number.

151231400 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 151231400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176923200).

151231400 is an abundant number, since it is smaller than the sum of its proper divisors (202615000).

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

151231400 is a wasteful number, since it uses less digits than its factorization.

151231400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818 (or 4809 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 151231400 is about 12297.6176554648. The cubic root of 151231400 is about 532.7792770454.

Adding to 151231400 its reverse (4132151), we get a palindrome (155363551).

The spelling of 151231400 in words is "one hundred fifty-one million, two hundred thirty-one thousand, four hundred".