12617311 has 12 divisors (see below), whose sum is σ = 15221712. Its totient is φ = 10243584.

The previous prime is 12617309. The next prime is 12617321. The reversal of 12617311 is 11371621.

It is not a de Polignac number, because 12617311 - 2¹ = 12617309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12617321) 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 11 ways as a sum of consecutive naturals, for example, 31 + ... + 5023.

It is an arithmetic number, because the mean of its divisors is an integer number (1268476).

Almost surely, 2^12617311 is an apocalyptic number.

12617311 is a deficient number, since it is larger than the sum of its proper divisors (2604401).

12617311 is an equidigital number, since it uses as much as digits as its factorization.

12617311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5038 (or 5019 counting only the distinct ones).

The product of its digits is 252, while the sum is 22.

The square root of 12617311 is about 3552.0854437921. The cubic root of 12617311 is about 232.8031948385.

Adding to 12617311 its reverse (11371621), we get a palindrome (23988932).

The spelling of 12617311 in words is "twelve million, six hundred seventeen thousand, three hundred eleven".