13608311 has 2 divisors, whose sum is σ = 13608312. Its totient is φ = 13608310.

The previous prime is 13608293. The next prime is 13608317. The reversal of 13608311 is 11380631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13608311 - 2⁶ = 13608247 is a prime.

It is a super-2 number, since 2×13608311² = 370372256545442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13608317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6804155 + 6804156.

It is an arithmetic number, because the mean of its divisors is an integer number (6804156).

Almost surely, 2^13608311 is an apocalyptic number.

13608311 is a deficient number, since it is larger than the sum of its proper divisors (1).

13608311 is an equidigital number, since it uses as much as digits as its factorization.

13608311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 13608311 is about 3688.9444289661. The cubic root of 13608311 is about 238.7452512236.

Adding to 13608311 its reverse (11380631), we get a palindrome (24988942).

The spelling of 13608311 in words is "thirteen million, six hundred eight thousand, three hundred eleven".