11813000 has 32 divisors (see below), whose sum is σ = 27644760. Its totient is φ = 4724800.

The previous prime is 11812991. The next prime is 11813017. The reversal of 11813000 is 31811.

It can be written as a sum of positive squares in 4 ways, for example, as 2896804 + 8916196 = 1702^2 + 2986^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4907 + ... + 6906.

Almost surely, 2^11813000 is an apocalyptic number.

11813000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11813000 is an abundant number, since it is smaller than the sum of its proper divisors (15831760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11813000 is a wasteful number, since it uses less digits than its factorization.

11813000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834 (or 11820 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 11813000 is about 3437.0045097439. The cubic root of 11813000 is about 227.7473861670.

Adding to 11813000 its reverse (31811), we get a palindrome (11844811).

The spelling of 11813000 in words is "eleven million, eight hundred thirteen thousand".