152561232 has 60 divisors (see below), whose sum is σ = 442784160. Its totient is φ = 50852448.

The previous prime is 152561191. The next prime is 152561251. The reversal of 152561232 is 232165251.

It is a happy number.

152561232 is a `hidden beast` number, since 15 + 2 + 5 + 612 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 152561196 and 152561205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15732 + ... + 23507.

It is an arithmetic number, because the mean of its divisors is an integer number (7379736).

Almost surely, 2^152561232 is an apocalyptic number.

152561232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

152561232 is an abundant number, since it is smaller than the sum of its proper divisors (290222928).

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

152561232 is an equidigital number, since it uses as much as digits as its factorization.

152561232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39262 (or 39244 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 152561232 is about 12351.5679976269. The cubic root of 152561232 is about 534.3363617492.

The spelling of 152561232 in words is "one hundred fifty-two million, five hundred sixty-one thousand, two hundred thirty-two".