89568131 has 2 divisors, whose sum is σ = 89568132. Its totient is φ = 89568130.

The previous prime is 89568119. The next prime is 89568163. The reversal of 89568131 is 13186598.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89568131 is a prime.

It is a super-2 number, since 2×89568131² = 16044900181666322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89508131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44784065 + 44784066.

It is an arithmetic number, because the mean of its divisors is an integer number (44784066).

Almost surely, 2^89568131 is an apocalyptic number.

89568131 is a deficient number, since it is larger than the sum of its proper divisors (1).

89568131 is an equidigital number, since it uses as much as digits as its factorization.

89568131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The square root of 89568131 is about 9464.0441144365. The cubic root of 89568131 is about 447.4225177171.

The spelling of 89568131 in words is "eighty-nine million, five hundred sixty-eight thousand, one hundred thirty-one".