104380631 has 2 divisors, whose sum is σ = 104380632. Its totient is φ = 104380630.

The previous prime is 104380613. The next prime is 104380667. The reversal of 104380631 is 136083401.

Together with previous prime (104380613) 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 (136083401) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104380631 is a prime.

It is a super-2 number, since 2×104380631² = 21790632255916322, 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 104380631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104380231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52190315 + 52190316.

It is an arithmetic number, because the mean of its divisors is an integer number (52190316).

Almost surely, 2^104380631 is an apocalyptic number.

104380631 is a deficient number, since it is larger than the sum of its proper divisors (1).

104380631 is an equidigital number, since it uses as much as digits as its factorization.

104380631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 104380631 is about 10216.6839532208. The cubic root of 104380631 is about 470.8399511500.

The spelling of 104380631 in words is "one hundred four million, three hundred eighty thousand, six hundred thirty-one".