104615531 has 2 divisors, whose sum is σ = 104615532. Its totient is φ = 104615530.

The previous prime is 104615527. The next prime is 104615543. The reversal of 104615531 is 135516401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104615531 - 2² = 104615527 is a prime.

It is a super-2 number, since 2×104615531² = 21888818652823922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104615531.

It is not a weakly prime, because it can be changed into another prime (104615521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52307765 + 52307766.

It is an arithmetic number, because the mean of its divisors is an integer number (52307766).

Almost surely, 2^104615531 is an apocalyptic number.

104615531 is a deficient number, since it is larger than the sum of its proper divisors (1).

104615531 is an equidigital number, since it uses as much as digits as its factorization.

104615531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 104615531 is about 10228.1733950887. The cubic root of 104615531 is about 471.1928820256.

The spelling of 104615531 in words is "one hundred four million, six hundred fifteen thousand, five hundred thirty-one".