11257171 has 4 divisors (see below), whose sum is σ = 11314512. Its totient is φ = 11199832.

The previous prime is 11257151. The next prime is 11257217. The reversal of 11257171 is 17175211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11257171 - 2⁹ = 11256659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11257151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28375 + ... + 28768.

It is an arithmetic number, because the mean of its divisors is an integer number (2828628).

Almost surely, 2^11257171 is an apocalyptic number.

11257171 is a deficient number, since it is larger than the sum of its proper divisors (57341).

11257171 is an equidigital number, since it uses as much as digits as its factorization.

11257171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57340.

The product of its digits is 490, while the sum is 25.

The square root of 11257171 is about 3355.1707855190. The cubic root of 11257171 is about 224.1178363319.

The spelling of 11257171 in words is "eleven million, two hundred fifty-seven thousand, one hundred seventy-one".