100551400 has 48 divisors (see below), whose sum is σ = 243957600. Its totient is φ = 38470080.

The previous prime is 100551397. The next prime is 100551433. The reversal of 100551400 is 4155001.

It is a happy number.

It is a super-2 number, since 2×100551400² = 20221168083920000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6330 + ... + 15529.

It is an arithmetic number, because the mean of its divisors is an integer number (5082450).

Almost surely, 2^100551400 is an apocalyptic number.

100551400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100551400 is an abundant number, since it is smaller than the sum of its proper divisors (143406200).

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

100551400 is a wasteful number, since it uses less digits than its factorization.

100551400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21898 (or 21889 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 100551400 is about 10027.5320991757. The cubic root of 100551400 is about 465.0104441328.

The spelling of 100551400 in words is "one hundred million, five hundred fifty-one thousand, four hundred".