104215725 has 18 divisors (see below), whose sum is σ = 186662346. Its totient is φ = 55581600.

The previous prime is 104215723. The next prime is 104215747. The reversal of 104215725 is 527512401.

It can be written as a sum of positive squares in 3 ways, for example, as 15139881 + 89075844 = 3891^2 + 9438^2 .

It is not a de Polignac number, because 104215725 - 2¹ = 104215723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104215721) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 231366 + ... + 231815.

Almost surely, 2^104215725 is an apocalyptic number.

104215725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104215725 is a deficient number, since it is larger than the sum of its proper divisors (82446621).

104215725 is a wasteful number, since it uses less digits than its factorization.

104215725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463197 (or 463189 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 104215725 is about 10208.6103363778. The cubic root of 104215725 is about 470.5918679024.

The spelling of 104215725 in words is "one hundred four million, two hundred fifteen thousand, seven hundred twenty-five".