156000431 has 16 divisors (see below), whose sum is σ = 170227200. Its totient is φ = 142466688.

The previous prime is 156000407. The next prime is 156000437. The reversal of 156000431 is 134000651.

It is a cyclic number.

It is not a de Polignac number, because 156000431 - 2¹⁰ = 155999407 is a prime.

It is a super-2 number, since 2×156000431² = 48672268944371522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156000437) 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 15 ways as a sum of consecutive naturals, for example, 63335 + ... + 65751.

It is an arithmetic number, because the mean of its divisors is an integer number (10639200).

Almost surely, 2^156000431 is an apocalyptic number.

156000431 is a deficient number, since it is larger than the sum of its proper divisors (14226769).

156000431 is a wasteful number, since it uses less digits than its factorization.

156000431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 156000431 is about 12490.0132505935. The cubic root of 156000431 is about 538.3217569699.

The spelling of 156000431 in words is "one hundred fifty-six million, four hundred thirty-one", and thus it is an aban number.