12713566 has 4 divisors (see below), whose sum is σ = 19070352. Its totient is φ = 6356782.

The previous prime is 12713557. The next prime is 12713573. The reversal of 12713566 is 66531721.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3178390 + ... + 3178393.

It is an arithmetic number, because the mean of its divisors is an integer number (4767588).

Almost surely, 2^12713566 is an apocalyptic number.

12713566 is a deficient number, since it is larger than the sum of its proper divisors (6356786).

12713566 is an equidigital number, since it uses as much as digits as its factorization.

12713566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356785.

The product of its digits is 7560, while the sum is 31.

The square root of 12713566 is about 3565.6087839246. The cubic root of 12713566 is about 233.3936991206.

The spelling of 12713566 in words is "twelve million, seven hundred thirteen thousand, five hundred sixty-six".