100870512 has 40 divisors (see below), whose sum is σ = 262649856. Its totient is φ = 33356736.

The previous prime is 100870477. The next prime is 100870519. The reversal of 100870512 is 215078001.

It is a super-2 number, since 2×100870512² = 20349720382284288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100870519) 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, 2178 + ... + 14369.

Almost surely, 2^100870512 is an apocalyptic number.

100870512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100870512 is an abundant number, since it is smaller than the sum of its proper divisors (161779344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100870512 is a wasteful number, since it uses less digits than its factorization.

100870512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16685 (or 16679 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 100870512 is about 10043.4312861691. The cubic root of 100870512 is about 465.5018469070.

The spelling of 100870512 in words is "one hundred million, eight hundred seventy thousand, five hundred twelve".