12317761 has 4 divisors (see below), whose sum is σ = 12358192. Its totient is φ = 12277332.

The previous prime is 12317743. The next prime is 12317771. The reversal of 12317761 is 16771321.

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 12317761 - 2⁵ = 12317729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12317771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19755 + ... + 20368.

It is an arithmetic number, because the mean of its divisors is an integer number (3089548).

Almost surely, 2^12317761 is an apocalyptic number.

It is an amenable number.

12317761 is a deficient number, since it is larger than the sum of its proper divisors (40431).

12317761 is an equidigital number, since it uses as much as digits as its factorization.

12317761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40430.

The product of its digits is 1764, while the sum is 28.

The square root of 12317761 is about 3509.6667933010. Note that the first 3 decimals coincide. The cubic root of 12317761 is about 230.9460778796.

The spelling of 12317761 in words is "twelve million, three hundred seventeen thousand, seven hundred sixty-one".