104208631 has 2 divisors, whose sum is σ = 104208632. Its totient is φ = 104208630.

The previous prime is 104208619. The next prime is 104208647. The reversal of 104208631 is 136802401.

It is a weak prime.

It is an emirp because it is prime and its reverse (136802401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104208631 - 2⁹ = 104208119 is a prime.

It is a super-2 number, since 2×104208631² = 21718877549788322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104208596 and 104208605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104208661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52104315 + 52104316.

It is an arithmetic number, because the mean of its divisors is an integer number (52104316).

Almost surely, 2^104208631 is an apocalyptic number.

104208631 is a deficient number, since it is larger than the sum of its proper divisors (1).

104208631 is an equidigital number, since it uses as much as digits as its factorization.

104208631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 104208631 is about 10208.2628786684. The cubic root of 104208631 is about 470.5811898771.

The spelling of 104208631 in words is "one hundred four million, two hundred eight thousand, six hundred thirty-one".