161200232 has 16 divisors (see below), whose sum is σ = 303458400. Its totient is φ = 80278000.

The previous prime is 161200223. The next prime is 161200297. The reversal of 161200232 is 232002161.

161200232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 161200232.

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, 38132 + ... + 42147.

It is an arithmetic number, because the mean of its divisors is an integer number (18966150).

Almost surely, 2^161200232 is an apocalyptic number.

It is an amenable number.

161200232 is a deficient number, since it is larger than the sum of its proper divisors (142258168).

161200232 is a wasteful number, since it uses less digits than its factorization.

161200232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80536 (or 80532 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 161200232 is about 12696.4653348875. The cubic root of 161200232 is about 544.2376142623.

Adding to 161200232 its reverse (232002161), we get a palindrome (393202393).

The spelling of 161200232 in words is "one hundred sixty-one million, two hundred thousand, two hundred thirty-two".