100931439 has 32 divisors (see below), whose sum is σ = 163215360. Its totient is φ = 54194400.

The previous prime is 100931437. The next prime is 100931447. The reversal of 100931439 is 934139001.

It is not a de Polignac number, because 100931439 - 2¹ = 100931437 is a prime.

It is a super-2 number, since 2×100931439² = 20374310757221442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100931437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51304 + ... + 53234.

It is an arithmetic number, because the mean of its divisors is an integer number (5100480).

Almost surely, 2^100931439 is an apocalyptic number.

100931439 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

100931439 is a deficient number, since it is larger than the sum of its proper divisors (62283921).

100931439 is a wasteful number, since it uses less digits than its factorization.

100931439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 100931439 is about 10046.4640048128. The cubic root of 100931439 is about 465.5955509444.

The spelling of 100931439 in words is "one hundred million, nine hundred thirty-one thousand, four hundred thirty-nine".