100551430 has 48 divisors (see below), whose sum is σ = 222945696. Its totient is φ = 32444160.

The previous prime is 100551397. The next prime is 100551433. The reversal of 100551430 is 34155001.

It is a super-2 number, since 2×100551430² = 20221180150089800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100551398 and 100551407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100551433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2295 + ... + 14365.

It is an arithmetic number, because the mean of its divisors is an integer number (4644702).

Almost surely, 2^100551430 is an apocalyptic number.

100551430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100551430 is an abundant number, since it is smaller than the sum of its proper divisors (122394266).

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

100551430 is a wasteful number, since it uses less digits than its factorization.

100551430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12109 (or 12102 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 100551430 is about 10027.5335950572. The cubic root of 100551430 is about 465.0104903788.

The spelling of 100551430 in words is "one hundred million, five hundred fifty-one thousand, four hundred thirty".