12981713 has 4 divisors (see below), whose sum is σ = 13029888. Its totient is φ = 12933540.

The previous prime is 12981691. The next prime is 12981733. The reversal of 12981713 is 31718921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12981713 - 2⁶ = 12981649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12981713.

It is not an unprimeable number, because it can be changed into a prime (12981733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23681 + ... + 24222.

It is an arithmetic number, because the mean of its divisors is an integer number (3257472).

Almost surely, 2^12981713 is an apocalyptic number.

It is an amenable number.

12981713 is a deficient number, since it is larger than the sum of its proper divisors (48175).

12981713 is an equidigital number, since it uses as much as digits as its factorization.

12981713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48174.

The product of its digits is 3024, while the sum is 32.

The square root of 12981713 is about 3603.0144323885. The cubic root of 12981713 is about 235.0231635535.

The spelling of 12981713 in words is "twelve million, nine hundred eighty-one thousand, seven hundred thirteen".