11522857 has 4 divisors (see below), whose sum is σ = 11535696. Its totient is φ = 11510020.

The previous prime is 11522851. The next prime is 11522879. The reversal of 11522857 is 75822511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11522857 - 2⁷ = 11522729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11522851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4963 + ... + 6904.

It is an arithmetic number, because the mean of its divisors is an integer number (2883924).

Almost surely, 2^11522857 is an apocalyptic number.

It is an amenable number.

11522857 is a deficient number, since it is larger than the sum of its proper divisors (12839).

11522857 is an equidigital number, since it uses as much as digits as its factorization.

11522857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12838.

The product of its digits is 5600, while the sum is 31.

The square root of 11522857 is about 3394.5333994527. The cubic root of 11522857 is about 225.8673158044.

The spelling of 11522857 in words is "eleven million, five hundred twenty-two thousand, eight hundred fifty-seven".