11161983 has 32 divisors (see below), whose sum is σ = 17842176. Its totient is φ = 6074208.

The previous prime is 11161967. The next prime is 11161991. The reversal of 11161983 is 38916111.

It is not a de Polignac number, because 11161983 - 2⁴ = 11161967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11161983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42310 + ... + 42572.

It is an arithmetic number, because the mean of its divisors is an integer number (557568).

Almost surely, 2^11161983 is an apocalyptic number.

11161983 is a deficient number, since it is larger than the sum of its proper divisors (6680193).

11161983 is a wasteful number, since it uses less digits than its factorization.

11161983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its digits is 1296, while the sum is 30.

The square root of 11161983 is about 3340.9554022764. The cubic root of 11161983 is about 223.4843514611.

The spelling of 11161983 in words is "eleven million, one hundred sixty-one thousand, nine hundred eighty-three".