156398963 has 16 divisors (see below), whose sum is σ = 194376384. Its totient is φ = 122757120.

The previous prime is 156398959. The next prime is 156398987. The reversal of 156398963 is 369893651.

It is not a de Polignac number, because 156398963 - 2² = 156398959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156398933) 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, 13358 + ... + 22163.

It is an arithmetic number, because the mean of its divisors is an integer number (12148524).

Almost surely, 2^156398963 is an apocalyptic number.

156398963 is a deficient number, since it is larger than the sum of its proper divisors (37977421).

156398963 is a wasteful number, since it uses less digits than its factorization.

156398963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35582.

The product of its digits is 1049760, while the sum is 50.

The square root of 156398963 is about 12505.9571005181. The cubic root of 156398963 is about 538.7797813724.

The spelling of 156398963 in words is "one hundred fifty-six million, three hundred ninety-eight thousand, nine hundred sixty-three".