100644131 has 8 divisors (see below), whose sum is σ = 121788000. Its totient is φ = 81191808.

The previous prime is 100644119. The next prime is 100644149. The reversal of 100644131 is 131446001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100644131 - 2¹⁸ = 100381987 is a prime.

It is a super-2 number, since 2×100644131² = 20258482209490322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100644101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422756 + ... + 422993.

It is an arithmetic number, because the mean of its divisors is an integer number (15223500).

Almost surely, 2^100644131 is an apocalyptic number.

100644131 is a deficient number, since it is larger than the sum of its proper divisors (21143869).

100644131 is an equidigital number, since it uses as much as digits as its factorization.

100644131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845773.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 100644131 is about 10032.1548532706. The cubic root of 100644131 is about 465.1533482746.

The spelling of 100644131 in words is "one hundred million, six hundred forty-four thousand, one hundred thirty-one".