11985183 has 24 divisors (see below), whose sum is σ = 19987968. Its totient is φ = 6778512.

The previous prime is 11985163. The next prime is 11985191. The reversal of 11985183 is 38158911.

It is not a de Polignac number, because 11985183 - 2¹² = 11981087 is a prime.

It is a super-2 number, since 2×11985183² = 287289223086978, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11985163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5566 + ... + 7412.

It is an arithmetic number, because the mean of its divisors is an integer number (832832).

Almost surely, 2^11985183 is an apocalyptic number.

11985183 is a deficient number, since it is larger than the sum of its proper divisors (8002785).

11985183 is a wasteful number, since it uses less digits than its factorization.

11985183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963 (or 1960 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 11985183 is about 3461.9623048208. The cubic root of 11985183 is about 228.8485806402.

The spelling of 11985183 in words is "eleven million, nine hundred eighty-five thousand, one hundred eighty-three".