100999964 has 12 divisors (see below), whose sum is σ = 190346184. Its totient is φ = 46615344.

The previous prime is 100999949. The next prime is 100999979. The reversal of 100999964 is 469999001.

It is an interprime number because it is at equal distance from previous prime (100999949) and next prime (100999979).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971102 + ... + 971205.

It is an arithmetic number, because the mean of its divisors is an integer number (15862182).

Almost surely, 2^100999964 is an apocalyptic number.

It is an amenable number.

100999964 is a deficient number, since it is larger than the sum of its proper divisors (89346220).

100999964 is a wasteful number, since it uses less digits than its factorization.

100999964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942324 (or 1942322 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 100999964 is about 10049.8738300538. The cubic root of 100999964 is about 465.7008954496.

The spelling of 100999964 in words is "one hundred million, nine hundred ninety-nine thousand, nine hundred sixty-four".