104165731 has 2 divisors, whose sum is σ = 104165732. Its totient is φ = 104165730.

The previous prime is 104165713. The next prime is 104165807. The reversal of 104165731 is 137561401.

Together with previous prime (104165713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (137561401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104165731 is a prime.

It is a super-2 number, since 2×104165731² = 21700999029528722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104165731.

It is not a weakly prime, because it can be changed into another prime (104165701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52082865 + 52082866.

It is an arithmetic number, because the mean of its divisors is an integer number (52082866).

Almost surely, 2^104165731 is an apocalyptic number.

104165731 is a deficient number, since it is larger than the sum of its proper divisors (1).

104165731 is an equidigital number, since it uses as much as digits as its factorization.

104165731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 104165731 is about 10206.1614233756. The cubic root of 104165731 is about 470.5166056426.

The spelling of 104165731 in words is "one hundred four million, one hundred sixty-five thousand, seven hundred thirty-one".