100574721 has 24 divisors (see below), whose sum is σ = 160095936. Its totient is φ = 60449760.

The previous prime is 100574713. The next prime is 100574731. The reversal of 100574721 is 127475001.

It is not a de Polignac number, because 100574721 - 2³ = 100574713 is a prime.

It is a super-3 number, since 3×100574721³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (100574711) 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, 4965 + ... + 15026.

It is an arithmetic number, because the mean of its divisors is an integer number (6670664).

Almost surely, 2^100574721 is an apocalyptic number.

It is an amenable number.

100574721 is a deficient number, since it is larger than the sum of its proper divisors (59521215).

100574721 is a wasteful number, since it uses less digits than its factorization.

100574721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20053 (or 20050 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 100574721 is about 10028.6948801925. The cubic root of 100574721 is about 465.0463914867.

The spelling of 100574721 in words is "one hundred million, five hundred seventy-four thousand, seven hundred twenty-one".