104166631 has 4 divisors (see below), whose sum is σ = 104188032. Its totient is φ = 104145232.

The previous prime is 104166583. The next prime is 104166641. The reversal of 104166631 is 136661401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136661401 = 53 ⋅2578517.

It is a cyclic number.

It is not a de Polignac number, because 104166631 - 2⁹ = 104166119 is a prime.

It is a super-2 number, since 2×104166631² = 21701374027780322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 104166631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104166641) 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, 531 + ... + 14443.

It is an arithmetic number, because the mean of its divisors is an integer number (26047008).

Almost surely, 2^104166631 is an apocalyptic number.

104166631 is a deficient number, since it is larger than the sum of its proper divisors (21401).

104166631 is an equidigital number, since it uses as much as digits as its factorization.

104166631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21400.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 104166631 is about 10206.2055142937. The cubic root of 104166631 is about 470.5179607387.

The spelling of 104166631 in words is "one hundred four million, one hundred sixty-six thousand, six hundred thirty-one".