12665037 has 32 divisors (see below), whose sum is σ = 21288960. Its totient is φ = 6505920.

The previous prime is 12664997. The next prime is 12665041. The reversal of 12665037 is 73056621.

It is not a de Polignac number, because 12665037 - 2⁸ = 12664781 is a prime.

It is a super-2 number, since 2×12665037² = 320806324422738, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12664995 and 12665013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12665087) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24928 + ... + 25430.

It is an arithmetic number, because the mean of its divisors is an integer number (665280).

Almost surely, 2^12665037 is an apocalyptic number.

It is an amenable number.

12665037 is a deficient number, since it is larger than the sum of its proper divisors (8623923).

12665037 is a wasteful number, since it uses less digits than its factorization.

12665037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 12665037 is about 3558.7971282443. The cubic root of 12665037 is about 233.0963578196.

The spelling of 12665037 in words is "twelve million, six hundred sixty-five thousand, thirty-seven".