100407725 has 12 divisors (see below), whose sum is σ = 135824640. Its totient is φ = 73023600.

The previous prime is 100407721. The next prime is 100407731. The reversal of 100407725 is 527704001.

It is not a de Polignac number, because 100407725 - 2² = 100407721 is a prime.

It is a super-2 number, since 2×100407725² = 20163422479351250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100407694 and 100407703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100407721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182285 + ... + 182834.

It is an arithmetic number, because the mean of its divisors is an integer number (11318720).

Almost surely, 2^100407725 is an apocalyptic number.

It is an amenable number.

100407725 is a deficient number, since it is larger than the sum of its proper divisors (35416915).

100407725 is a wasteful number, since it uses less digits than its factorization.

100407725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365140 (or 365135 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 100407725 is about 10020.3655122954. The cubic root of 100407725 is about 464.7888585491.

The spelling of 100407725 in words is "one hundred million, four hundred seven thousand, seven hundred twenty-five".