11157290 has 16 divisors (see below), whose sum is σ = 20121480. Its totient is φ = 4454400.

The previous prime is 11157259. The next prime is 11157319. The reversal of 11157290 is 9275111.

It can be written as a sum of positive squares in 4 ways, for example, as 1787569 + 9369721 = 1337^2 + 3061^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8690 + ... + 9890.

Almost surely, 2^11157290 is an apocalyptic number.

11157290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11157290 is a deficient number, since it is larger than the sum of its proper divisors (8964190).

11157290 is a wasteful number, since it uses less digits than its factorization.

11157290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 11157290 is about 3340.2529844310. The cubic root of 11157290 is about 223.4530261107.

The spelling of 11157290 in words is "eleven million, one hundred fifty-seven thousand, two hundred ninety".