100646131 has 8 divisors (see below), whose sum is σ = 101930400. Its totient is φ = 99368640.

The previous prime is 100646093. The next prime is 100646149. The reversal of 100646131 is 131646001.

It is a happy number.

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 100646131 - 2⁹ = 100645619 is a prime.

It is a super-2 number, since 2×100646131² = 20259287370538322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100646191) 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, 32415 + ... + 35383.

It is an arithmetic number, because the mean of its divisors is an integer number (12741300).

Almost surely, 2^100646131 is an apocalyptic number.

100646131 is a deficient number, since it is larger than the sum of its proper divisors (1284269).

100646131 is a wasteful number, since it uses less digits than its factorization.

100646131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 100646131 is about 10032.2545322574. The cubic root of 100646131 is about 465.1564294297.

The spelling of 100646131 in words is "one hundred million, six hundred forty-six thousand, one hundred thirty-one".