156161232 has 60 divisors (see below), whose sum is σ = 440527360. Its totient is φ = 51637824.

The previous prime is 156161227. The next prime is 156161233. The reversal of 156161232 is 232161651.

156161232 is a `hidden beast` number, since 1 + 5 + 616 + 12 + 32 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 156161196 and 156161205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156161233) by changing a digit.

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, 14019 + ... + 22557.

Almost surely, 2^156161232 is an apocalyptic number.

156161232 is a gapful number since it is divisible by the number (12) 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 156161232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220263680).

156161232 is an abundant number, since it is smaller than the sum of its proper divisors (284366128).

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

156161232 is a wasteful number, since it uses less digits than its factorization.

156161232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8680 (or 8671 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 156161232 is about 12496.4487755522. The cubic root of 156161232 is about 538.5066559286.

The spelling of 156161232 in words is "one hundred fifty-six million, one hundred sixty-one thousand, two hundred thirty-two".