104192531 has 2 divisors, whose sum is σ = 104192532. Its totient is φ = 104192530.

The previous prime is 104192527. The next prime is 104192533. The reversal of 104192531 is 135291401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104192531 - 2² = 104192527 is a prime.

It is a super-2 number, since 2×104192531² = 21712167032371922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 104192533, it forms a pair of twin primes.

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 104192531.

It is not a weakly prime, because it can be changed into another prime (104192533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52096265 + 52096266.

It is an arithmetic number, because the mean of its divisors is an integer number (52096266).

Almost surely, 2^104192531 is an apocalyptic number.

104192531 is a deficient number, since it is larger than the sum of its proper divisors (1).

104192531 is an equidigital number, since it uses as much as digits as its factorization.

104192531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 104192531 is about 10207.4742713367. The cubic root of 104192531 is about 470.5569540491.

The spelling of 104192531 in words is "one hundred four million, one hundred ninety-two thousand, five hundred thirty-one".