156432 has 20 divisors (see below), whose sum is σ = 404240. Its totient is φ = 52128.

The previous prime is 156421. The next prime is 156437. The reversal of 156432 is 234651.

It is a happy number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 156399 and 156408.

It is not an unprimeable number, because it can be changed into a prime (156437) by changing a digit.

156432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1582 + ... + 1677.

It is an arithmetic number, because the mean of its divisors is an integer number (20212).

2¹⁵⁶⁴³² is an apocalyptic number.

156432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156432 is an abundant number, since it is smaller than the sum of its proper divisors (247808).

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

156432 is a wasteful number, since it uses less digits than its factorization.

156432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270 (or 3264 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 156432 is about 395.5148543355. The cubic root of 156432 is about 53.8817715159.

It can be divided in two parts, 1564 and 32, that added together give a triangular number (1596 = T₅₆).

The spelling of 156432 in words is "one hundred fifty-six thousand, four hundred thirty-two".