12617953 has 2 divisors, whose sum is σ = 12617954. Its totient is φ = 12617952.

The previous prime is 12617947. The next prime is 12617981. The reversal of 12617953 is 35971621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12510369 + 107584 = 3537^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 12617953 - 2⁵ = 12617921 is a prime.

It is not a weakly prime, because it can be changed into another prime (12617903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308976 + 6308977.

It is an arithmetic number, because the mean of its divisors is an integer number (6308977).

Almost surely, 2^12617953 is an apocalyptic number.

It is an amenable number.

12617953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12617953 is an equidigital number, since it uses as much as digits as its factorization.

12617953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 34.

The square root of 12617953 is about 3552.1758120904. The cubic root of 12617953 is about 232.8071433057.

The spelling of 12617953 in words is "twelve million, six hundred seventeen thousand, nine hundred fifty-three".