100725330 has 16 divisors (see below), whose sum is σ = 241740864. Its totient is φ = 26860080.

The previous prime is 100725319. The next prime is 100725337. The reversal of 100725330 is 33527001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100725297 and 100725306.

It is not an unprimeable number, because it can be changed into a prime (100725337) 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, 1678726 + ... + 1678785.

It is an arithmetic number, because the mean of its divisors is an integer number (15108804).

Almost surely, 2^100725330 is an apocalyptic number.

100725330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100725330 is an abundant number, since it is smaller than the sum of its proper divisors (141015534).

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

100725330 is a wasteful number, since it uses less digits than its factorization.

100725330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3357521.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 100725330 is about 10036.2009744724. The cubic root of 100725330 is about 465.2784088332.

The spelling of 100725330 in words is "one hundred million, seven hundred twenty-five thousand, three hundred thirty".