156358961 has 16 divisors (see below), whose sum is σ = 180792000. Its totient is φ = 133732800.

The previous prime is 156358949. The next prime is 156358963. The reversal of 156358961 is 169853651.

It is a cyclic number.

It is not a de Polignac number, because 156358961 - 2⁶ = 156358897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156358963) 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, 28631 + ... + 33651.

It is an arithmetic number, because the mean of its divisors is an integer number (11299500).

Almost surely, 2^156358961 is an apocalyptic number.

156358961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

156358961 is a deficient number, since it is larger than the sum of its proper divisors (24433039).

156358961 is a wasteful number, since it uses less digits than its factorization.

156358961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200.

The product of its digits is 194400, while the sum is 44.

The square root of 156358961 is about 12504.3576804249. The cubic root of 156358961 is about 538.7338430743.

The spelling of 156358961 in words is "one hundred fifty-six million, three hundred fifty-eight thousand, nine hundred sixty-one".