88081531 has 2 divisors, whose sum is σ = 88081532. Its totient is φ = 88081530.

The previous prime is 88081523. The next prime is 88081537. The reversal of 88081531 is 13518088.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88081531 - 2³ = 88081523 is a prime.

It is a super-2 number, since 2×88081531² = 15516712206607922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88081537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44040765 + 44040766.

It is an arithmetic number, because the mean of its divisors is an integer number (44040766).

Almost surely, 2^88081531 is an apocalyptic number.

88081531 is a deficient number, since it is larger than the sum of its proper divisors (1).

88081531 is an equidigital number, since it uses as much as digits as its factorization.

88081531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 88081531 is about 9385.1761304730. The cubic root of 88081531 is about 444.9333418651.

The spelling of 88081531 in words is "eighty-eight million, eighty-one thousand, five hundred thirty-one".