161602252 has 24 divisors (see below), whose sum is σ = 324856224. Its totient is φ = 68904192.

The previous prime is 161602249. The next prime is 161602253. The reversal of 161602252 is 252206161.

161602252 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161602252² = 52230575702943008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161602253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9133 + ... + 20164.

It is an arithmetic number, because the mean of its divisors is an integer number (13535676).

Almost surely, 2^161602252 is an apocalyptic number.

It is an amenable number.

161602252 is an abundant number, since it is smaller than the sum of its proper divisors (163253972).

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

161602252 is a wasteful number, since it uses less digits than its factorization.

161602252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29505 (or 29503 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 161602252 is about 12712.2874416841. The cubic root of 161602252 is about 544.6896664906.

The spelling of 161602252 in words is "one hundred sixty-one million, six hundred two thousand, two hundred fifty-two".