11656319 has 2 divisors, whose sum is σ = 11656320. Its totient is φ = 11656318.

The previous prime is 11656313. The next prime is 11656321. The reversal of 11656319 is 91365611.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11656319 is a prime.

It is a super-2 number, since 2×11656319² = 271739545259522, which contains 22 as substring.

Together with 11656321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11656313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5828159 + 5828160.

It is an arithmetic number, because the mean of its divisors is an integer number (5828160).

Almost surely, 2^11656319 is an apocalyptic number.

11656319 is a deficient number, since it is larger than the sum of its proper divisors (1).

11656319 is an equidigital number, since it uses as much as digits as its factorization.

11656319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 32.

The square root of 11656319 is about 3414.1351759999. The cubic root of 11656319 is about 226.7359969099.

The spelling of 11656319 in words is "eleven million, six hundred fifty-six thousand, three hundred nineteen".