2161186932 has 12 divisors (see below), whose sum is σ = 5042769536. Its totient is φ = 720395640.

The previous prime is 2161186889. The next prime is 2161186961. The reversal of 2161186932 is 2396811612.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90049444 + ... + 90049467.

Almost surely, 2^2161186932 is an apocalyptic number.

It is an amenable number.

2161186932 is an abundant number, since it is smaller than the sum of its proper divisors (2881582604).

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

2161186932 is a wasteful number, since it uses less digits than its factorization.

2161186932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180098918 (or 180098916 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 2161186932 is about 46488.5677559548. The cubic root of 2161186932 is about 1292.8975454289.

The spelling of 2161186932 in words is "two billion, one hundred sixty-one million, one hundred eighty-six thousand, nine hundred thirty-two".