100457725 has 6 divisors (see below), whose sum is σ = 124567610. Its totient is φ = 80366160.

The previous prime is 100457683. The next prime is 100457783. The reversal of 100457725 is 527754001.

It can be written as a sum of positive squares in 3 ways, for example, as 10169721 + 90288004 = 3189^2 + 9502^2 .

It is not a de Polignac number, because 100457725 - 2⁷ = 100457597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2009130 + ... + 2009179.

Almost surely, 2^100457725 is an apocalyptic number.

It is an amenable number.

100457725 is a deficient number, since it is larger than the sum of its proper divisors (24109885).

100457725 is an equidigital number, since it uses as much as digits as its factorization.

100457725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4018319 (or 4018314 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 100457725 is about 10022.8601207440. The cubic root of 100457725 is about 464.8659959954.

The spelling of 100457725 in words is "one hundred million, four hundred fifty-seven thousand, seven hundred twenty-five".