161052232 has 32 divisors (see below), whose sum is σ = 330664320. Its totient is φ = 72930240.

The previous prime is 161052191. The next prime is 161052239. The reversal of 161052232 is 232250161.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (161052239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21073 + ... + 27679.

It is an arithmetic number, because the mean of its divisors is an integer number (10333260).

Almost surely, 2^161052232 is an apocalyptic number.

It is an amenable number.

161052232 is an abundant number, since it is smaller than the sum of its proper divisors (169612088).

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

161052232 is a wasteful number, since it uses less digits than its factorization.

161052232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6901 (or 6897 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 161052232 is about 12690.6356026796. The cubic root of 161052232 is about 544.0710060861.

The spelling of 161052232 in words is "one hundred sixty-one million, fifty-two thousand, two hundred thirty-two".