11517139 has 2 divisors, whose sum is σ = 11517140. Its totient is φ = 11517138.

The previous prime is 11517133. The next prime is 11517157. The reversal of 11517139 is 93171511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11517139 - 2²¹ = 9419987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11517133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5758569 + 5758570.

It is an arithmetic number, because the mean of its divisors is an integer number (5758570).

Almost surely, 2^11517139 is an apocalyptic number.

11517139 is a deficient number, since it is larger than the sum of its proper divisors (1).

11517139 is an equidigital number, since it uses as much as digits as its factorization.

11517139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 945, while the sum is 28.

The square root of 11517139 is about 3393.6910584200. The cubic root of 11517139 is about 225.8299488274.

The spelling of 11517139 in words is "eleven million, five hundred seventeen thousand, one hundred thirty-nine".