156314431 has 16 divisors (see below), whose sum is σ = 198596608. Its totient is φ = 119685600.

The previous prime is 156314429. The next prime is 156314443. The reversal of 156314431 is 134413651.

It is a cyclic number.

It is not a de Polignac number, because 156314431 - 2¹ = 156314429 is a prime.

It is a super-2 number, since 2×156314431² = 48868402677707522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 156314431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156314471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24885 + ... + 30526.

It is an arithmetic number, because the mean of its divisors is an integer number (12412288).

Almost surely, 2^156314431 is an apocalyptic number.

156314431 is a deficient number, since it is larger than the sum of its proper divisors (42282177).

156314431 is a wasteful number, since it uses less digits than its factorization.

156314431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55462.

The product of its digits is 4320, while the sum is 28.

The square root of 156314431 is about 12502.5769743681. The cubic root of 156314431 is about 538.6826956044.

The spelling of 156314431 in words is "one hundred fifty-six million, three hundred fourteen thousand, four hundred thirty-one".