11157818 has 16 divisors (see below), whose sum is σ = 19212864. Its totient is φ = 4760640.

The previous prime is 11157803. The next prime is 11157823. The reversal of 11157818 is 81875111.

It is a super-2 number, since 2×11157818² = 248993805042248, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1721 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (1200804).

Almost surely, 2^11157818 is an apocalyptic number.

11157818 is a deficient number, since it is larger than the sum of its proper divisors (8055046).

11157818 is a wasteful number, since it uses less digits than its factorization.

11157818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557.

The product of its digits is 2240, while the sum is 32.

The square root of 11157818 is about 3340.3320194256. The cubic root of 11157818 is about 223.4565509014.

The spelling of 11157818 in words is "eleven million, one hundred fifty-seven thousand, eight hundred eighteen".