11517257 has 2 divisors, whose sum is σ = 11517258. Its totient is φ = 11517256.

The previous prime is 11517241. The next prime is 11517293. The reversal of 11517257 is 75271511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9024016 + 2493241 = 3004^2 + 1579^2 .

It is a cyclic number.

It is not a de Polignac number, because 11517257 - 2⁴ = 11517241 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11517157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5758628 + 5758629.

It is an arithmetic number, because the mean of its divisors is an integer number (5758629).

Almost surely, 2^11517257 is an apocalyptic number.

It is an amenable number.

11517257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11517257 is an equidigital number, since it uses as much as digits as its factorization.

11517257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2450, while the sum is 29.

The square root of 11517257 is about 3393.7084435761. The cubic root of 11517257 is about 225.8307200792.

Adding to 11517257 its reverse (75271511), we get a palindrome (86788768).

The spelling of 11517257 in words is "eleven million, five hundred seventeen thousand, two hundred fifty-seven".