11516291 has 2 divisors, whose sum is σ = 11516292. Its totient is φ = 11516290.

The previous prime is 11516279. The next prime is 11516321. The reversal of 11516291 is 19261511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11516291 - 2⁶ = 11516227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11516291.

It is not a weakly prime, because it can be changed into another prime (11516231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5758145 + 5758146.

It is an arithmetic number, because the mean of its divisors is an integer number (5758146).

Almost surely, 2^11516291 is an apocalyptic number.

11516291 is a deficient number, since it is larger than the sum of its proper divisors (1).

11516291 is an equidigital number, since it uses as much as digits as its factorization.

11516291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 26.

The square root of 11516291 is about 3393.5661184070. The cubic root of 11516291 is about 225.8244061170.

The spelling of 11516291 in words is "eleven million, five hundred sixteen thousand, two hundred ninety-one".