100415725 has 12 divisors (see below), whose sum is σ = 125499904. Its totient is φ = 79697520.

The previous prime is 100415717. The next prime is 100415729. The reversal of 100415725 is 527514001.

It is not a de Polignac number, because 100415725 - 2³ = 100415717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100415725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100415729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12639 + ... + 18988.

Almost surely, 2^100415725 is an apocalyptic number.

It is an amenable number.

100415725 is a deficient number, since it is larger than the sum of its proper divisors (25084179).

100415725 is a wasteful number, since it uses less digits than its factorization.

100415725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31764 (or 31759 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 100415725 is about 10020.7646913796. The cubic root of 100415725 is about 464.8012022611.

Adding to 100415725 its reverse (527514001), we get a palindrome (627929726).

The spelling of 100415725 in words is "one hundred million, four hundred fifteen thousand, seven hundred twenty-five".