100551012 has 24 divisors (see below), whose sum is σ = 235658976. Its totient is φ = 33368448.

The previous prime is 100550999. The next prime is 100551029. The reversal of 100551012 is 210155001.

It is a super-2 number, since 2×100551012² = 20221012028448288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100550982 and 100551000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15733 + ... + 21180.

It is an arithmetic number, because the mean of its divisors is an integer number (9819124).

Almost surely, 2^100551012 is an apocalyptic number.

100551012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100551012 is an abundant number, since it is smaller than the sum of its proper divisors (135107964).

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

100551012 is a wasteful number, since it uses less digits than its factorization.

100551012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37147 (or 37145 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 100551012 is about 10027.5127524227. The cubic root of 100551012 is about 465.0098460165.

The spelling of 100551012 in words is "one hundred million, five hundred fifty-one thousand, twelve".