97259531 has 2 divisors, whose sum is σ = 97259532. Its totient is φ = 97259530.

The previous prime is 97259527. The next prime is 97259549. The reversal of 97259531 is 13595279.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97259531 - 2² = 97259527 is a prime.

It is a super-2 number, since 2×97259531² = 18918832740679922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97259581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48629765 + 48629766.

It is an arithmetic number, because the mean of its divisors is an integer number (48629766).

Almost surely, 2^97259531 is an apocalyptic number.

97259531 is a deficient number, since it is larger than the sum of its proper divisors (1).

97259531 is an equidigital number, since it uses as much as digits as its factorization.

97259531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 41.

The square root of 97259531 is about 9862.0246907012. The cubic root of 97259531 is about 459.8795068779.

The spelling of 97259531 in words is "ninety-seven million, two hundred fifty-nine thousand, five hundred thirty-one".