88149931 has 2 divisors, whose sum is σ = 88149932. Its totient is φ = 88149930.

The previous prime is 88149889. The next prime is 88149967. The reversal of 88149931 is 13994188.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88149931 - 2¹¹ = 88147883 is a prime.

It is a super-2 number, since 2×88149931² = 15540820670609522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88149991) 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 as a sum of consecutive naturals, namely, 44074965 + 44074966.

It is an arithmetic number, because the mean of its divisors is an integer number (44074966).

Almost surely, 2^88149931 is an apocalyptic number.

88149931 is a deficient number, since it is larger than the sum of its proper divisors (1).

88149931 is an equidigital number, since it uses as much as digits as its factorization.

88149931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 43.

The square root of 88149931 is about 9388.8194678564. The cubic root of 88149931 is about 445.0484835446.

The spelling of 88149931 in words is "eighty-eight million, one hundred forty-nine thousand, nine hundred thirty-one".