88831161 has 20 divisors (see below), whose sum is σ = 133305700. Its totient is φ = 58949856.

The previous prime is 88831139. The next prime is 88831177. The reversal of 88831161 is 16113888.

It can be written as a sum of positive squares in 2 ways, for example, as 44475561 + 44355600 = 6669^2 + 6660^2 .

It is not a de Polignac number, because 88831161 - 2⁶ = 88831097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88831111) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16155 + ... + 20943.

It is an arithmetic number, because the mean of its divisors is an integer number (6665285).

Almost surely, 2^88831161 is an apocalyptic number.

88831161 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

88831161 is a deficient number, since it is larger than the sum of its proper divisors (44474539).

88831161 is a wasteful number, since it uses less digits than its factorization.

88831161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030 (or 5021 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 88831161 is about 9425.0284349704. The cubic root of 88831161 is about 446.1920000886.

The spelling of 88831161 in words is "eighty-eight million, eight hundred thirty-one thousand, one hundred sixty-one".