100108631 has 16 divisors (see below), whose sum is σ = 121617216. Its totient is φ = 80441856.

The previous prime is 100108607. The next prime is 100108661. The reversal of 100108631 is 136801001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100108631 is a prime.

It is a super-2 number, since 2×100108631² = 20043476001388322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100108661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31445 + ... + 34481.

It is an arithmetic number, because the mean of its divisors is an integer number (7601076).

Almost surely, 2^100108631 is an apocalyptic number.

100108631 is a deficient number, since it is larger than the sum of its proper divisors (21508585).

100108631 is a wasteful number, since it uses less digits than its factorization.

100108631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 100108631 is about 10005.4300757139. The cubic root of 100108631 is about 464.3268960169.

Adding to 100108631 its reverse (136801001), we get a palindrome (236909632).

The spelling of 100108631 in words is "one hundred million, one hundred eight thousand, six hundred thirty-one".