11556113 has 2 divisors, whose sum is σ = 11556114. Its totient is φ = 11556112.

The previous prime is 11556091. The next prime is 11556151. The reversal of 11556113 is 31165511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7524049 + 4032064 = 2743^2 + 2008^2 .

It is a cyclic number.

It is not a de Polignac number, because 11556113 - 2⁶ = 11556049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11550113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5778056 + 5778057.

It is an arithmetic number, because the mean of its divisors is an integer number (5778057).

Almost surely, 2^11556113 is an apocalyptic number.

It is an amenable number.

11556113 is a deficient number, since it is larger than the sum of its proper divisors (1).

11556113 is an equidigital number, since it uses as much as digits as its factorization.

11556113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 450, while the sum is 23.

The square root of 11556113 is about 3399.4283342939. The cubic root of 11556113 is about 226.0843982168.

The spelling of 11556113 in words is "eleven million, five hundred fifty-six thousand, one hundred thirteen".