11249857 has 4 divisors (see below), whose sum is σ = 11279920. Its totient is φ = 11219796.

The previous prime is 11249851. The next prime is 11249891. The reversal of 11249857 is 75894211.

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 11249857 - 2¹¹ = 11247809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11249851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14463 + ... + 15220.

It is an arithmetic number, because the mean of its divisors is an integer number (2819980).

Almost surely, 2^11249857 is an apocalyptic number.

It is an amenable number.

11249857 is a deficient number, since it is larger than the sum of its proper divisors (30063).

11249857 is an equidigital number, since it uses as much as digits as its factorization.

11249857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30062.

The product of its digits is 20160, while the sum is 37.

The square root of 11249857 is about 3354.0806490006. The cubic root of 11249857 is about 224.0692879299.

The spelling of 11249857 in words is "eleven million, two hundred forty-nine thousand, eight hundred fifty-seven".