104631 has 4 divisors (see below), whose sum is σ = 139512. Its totient is φ = 69752.

The previous prime is 104623. The next prime is 104639. The reversal of 104631 is 136401.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (104623) and next prime (104639).

It is a cyclic number.

It is not a de Polignac number, because 104631 - 2³ = 104623 is a prime.

It is a super-2 number, since 2×104631² = 21895292322, which contains 22 as substring.

It is a D-number.

104631 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 104631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17436 + ... + 17441.

It is an arithmetic number, because the mean of its divisors is an integer number (34878).

2¹⁰⁴⁶³¹ is an apocalyptic number.

104631 is a deficient number, since it is larger than the sum of its proper divisors (34881).

104631 is an equidigital number, since it uses as much as digits as its factorization.

104631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34880.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 104631 is about 323.4671544377. The cubic root of 104631 is about 47.1216105230.

The spelling of 104631 in words is "one hundred four thousand, six hundred thirty-one".