104215025 has 12 divisors (see below), whose sum is σ = 133396224. Its totient is φ = 80682000.

The previous prime is 104215021. The next prime is 104215031. The reversal of 104215025 is 520512401.

It is not a de Polignac number, because 104215025 - 2² = 104215021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104214988 and 104215006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104215021) 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, 66461 + ... + 68010.

It is an arithmetic number, because the mean of its divisors is an integer number (11116352).

Almost surely, 2^104215025 is an apocalyptic number.

It is an amenable number.

104215025 is a deficient number, since it is larger than the sum of its proper divisors (29181199).

104215025 is a wasteful number, since it uses less digits than its factorization.

104215025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134512 (or 134507 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 104215025 is about 10208.5760515363. The cubic root of 104215025 is about 470.5908142705.

Adding to 104215025 its reverse (520512401), we get a palindrome (624727426).

The spelling of 104215025 in words is "one hundred four million, two hundred fifteen thousand, twenty-five".