161292112 has 20 divisors (see below), whose sum is σ = 313228960. Its totient is φ = 80458848.

The previous prime is 161292059. The next prime is 161292133. The reversal of 161292112 is 211292161.

It is a happy number.

161292112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4458 + ... + 18505.

It is an arithmetic number, because the mean of its divisors is an integer number (15661448).

Almost surely, 2^161292112 is an apocalyptic number.

It is an amenable number.

161292112 is a deficient number, since it is larger than the sum of its proper divisors (151936848).

161292112 is a wasteful number, since it uses less digits than its factorization.

161292112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23410 (or 23404 counting only the distinct ones).

The product of its digits is 432, while the sum is 25.

The square root of 161292112 is about 12700.0831493341. The cubic root of 161292112 is about 544.3409951197.

The spelling of 161292112 in words is "one hundred sixty-one million, two hundred ninety-two thousand, one hundred twelve".