12606731 has 2 divisors, whose sum is σ = 12606732. Its totient is φ = 12606730.

The previous prime is 12606703. The next prime is 12606733. The reversal of 12606731 is 13760621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12606731 - 2⁶ = 12606667 is a prime.

It is a super-2 number, since 2×12606731² = 317859333012722, which contains 22 as substring.

Together with 12606733, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12606731.

It is not a weakly prime, because it can be changed into another prime (12606733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6303365 + 6303366.

It is an arithmetic number, because the mean of its divisors is an integer number (6303366).

Almost surely, 2^12606731 is an apocalyptic number.

12606731 is a deficient number, since it is larger than the sum of its proper divisors (1).

12606731 is an equidigital number, since it uses as much as digits as its factorization.

12606731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12606731 is about 3550.5958654851. The cubic root of 12606731 is about 232.7381057829.

The spelling of 12606731 in words is "twelve million, six hundred six thousand, seven hundred thirty-one".