12504665 has 4 divisors (see below), whose sum is σ = 15005604. Its totient is φ = 10003728.

The previous prime is 12504659. The next prime is 12504671. The reversal of 12504665 is 56640521.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12504659) and next prime (12504671).

It can be written as a sum of positive squares in 2 ways, for example, as 4376464 + 8128201 = 2092^2 + 2851^2 .

It is a cyclic number.

It is not a de Polignac number, because 12504665 - 2⁴ = 12504649 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250462 + ... + 1250471.

It is an arithmetic number, because the mean of its divisors is an integer number (3751401).

Almost surely, 2^12504665 is an apocalyptic number.

It is an amenable number.

12504665 is a deficient number, since it is larger than the sum of its proper divisors (2500939).

12504665 is an equidigital number, since it uses as much as digits as its factorization.

12504665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500938.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 12504665 is about 3536.1935750182. The cubic root of 12504665 is about 232.1083087724.

The spelling of 12504665 in words is "twelve million, five hundred four thousand, six hundred sixty-five".