88831139 has 2 divisors, whose sum is σ = 88831140. Its totient is φ = 88831138.

The previous prime is 88831111. The next prime is 88831177. The reversal of 88831139 is 93113888.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88831139 - 2⁸ = 88830883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88831096 and 88831105.

It is not a weakly prime, because it can be changed into another prime (88831439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44415569 + 44415570.

It is an arithmetic number, because the mean of its divisors is an integer number (44415570).

Almost surely, 2^88831139 is an apocalyptic number.

88831139 is a deficient number, since it is larger than the sum of its proper divisors (1).

88831139 is an equidigital number, since it uses as much as digits as its factorization.

88831139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 41.

The square root of 88831139 is about 9425.0272678651. The cubic root of 88831139 is about 446.1919632538.

The spelling of 88831139 in words is "eighty-eight million, eight hundred thirty-one thousand, one hundred thirty-nine".