1304615725 has 12 divisors (see below), whose sum is σ = 1848827104. Its totient is φ = 894593520.

The previous prime is 1304615633. The next prime is 1304615737. The reversal of 1304615725 is 5275164031.

It is not a de Polignac number, because 1304615725 - 2²⁵ = 1271061293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 3727299 + ... + 3727648.

Almost surely, 2^1304615725 is an apocalyptic number.

It is an amenable number.

1304615725 is a deficient number, since it is larger than the sum of its proper divisors (544211379).

1304615725 is an equidigital number, since it uses as much as digits as its factorization.

1304615725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7454964 (or 7454959 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1304615725 is about 36119.4646278153. The cubic root of 1304615725 is about 1092.6830418015.

Adding to 1304615725 its reverse (5275164031), we get a palindrome (6579779756).

The spelling of 1304615725 in words is "one billion, three hundred four million, six hundred fifteen thousand, seven hundred twenty-five".