88831181 has 2 divisors, whose sum is σ = 88831182. Its totient is φ = 88831180.

The previous prime is 88831177. The next prime is 88831187. The reversal of 88831181 is 18113888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44488900 + 44342281 = 6670^2 + 6659^2 .

It is a cyclic number.

It is not a de Polignac number, because 88831181 - 2² = 88831177 is a prime.

It is a super-2 number, since 2×88831181² = 15781957435709522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88831187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44415590 + 44415591.

It is an arithmetic number, because the mean of its divisors is an integer number (44415591).

Almost surely, 2^88831181 is an apocalyptic number.

It is an amenable number.

88831181 is a deficient number, since it is larger than the sum of its proper divisors (1).

88831181 is an equidigital number, since it uses as much as digits as its factorization.

88831181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288, while the sum is 38.

The square root of 88831181 is about 9425.0294959751. The cubic root of 88831181 is about 446.1920335747.

The spelling of 88831181 in words is "eighty-eight million, eight hundred thirty-one thousand, one hundred eighty-one".