11516539 has 2 divisors, whose sum is σ = 11516540. Its totient is φ = 11516538.

The previous prime is 11516521. The next prime is 11516543. The reversal of 11516539 is 93561511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11516539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11516539.

It is not a weakly prime, because it can be changed into another prime (11516569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5758269 + 5758270.

It is an arithmetic number, because the mean of its divisors is an integer number (5758270).

Almost surely, 2^11516539 is an apocalyptic number.

11516539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11516539 is an equidigital number, since it uses as much as digits as its factorization.

11516539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 31.

The square root of 11516539 is about 3393.6026579433. The cubic root of 11516539 is about 225.8260271265.

The spelling of 11516539 in words is "eleven million, five hundred sixteen thousand, five hundred thirty-nine".