100691044 has 24 divisors (see below), whose sum is σ = 179402720. Its totient is φ = 49441536.

The previous prime is 100691021. The next prime is 100691047. The reversal of 100691044 is 440196001.

It is not an unprimeable number, because it can be changed into a prime (100691047) 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, 52999 + ... + 54865.

Almost surely, 2^100691044 is an apocalyptic number.

It is an amenable number.

100691044 is a deficient number, since it is larger than the sum of its proper divisors (78711676).

100691044 is a wasteful number, since it uses less digits than its factorization.

100691044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107 (or 2105 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 100691044 is about 10034.4927126387. The cubic root of 100691044 is about 465.2256106414.

The spelling of 100691044 in words is "one hundred million, six hundred ninety-one thousand, forty-four".