161014180 has 24 divisors (see below), whose sum is σ = 341619768. Its totient is φ = 63740928.

The previous prime is 161014111. The next prime is 161014181. The reversal of 161014180 is 81410161.

It can be written as a sum of positive squares in 4 ways, for example, as 21585316 + 139428864 = 4646^2 + 11808^2 .

It is a super-2 number, since 2×161014180² = 51851132322144800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161014181) 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, 39559 + ... + 43438.

It is an arithmetic number, because the mean of its divisors is an integer number (14234157).

Almost surely, 2^161014180 is an apocalyptic number.

161014180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161014180 is an abundant number, since it is smaller than the sum of its proper divisors (180605588).

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

161014180 is a wasteful number, since it uses less digits than its factorization.

161014180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83103 (or 83101 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 161014180 is about 12689.1362984247. The cubic root of 161014180 is about 544.0281532791.

The spelling of 161014180 in words is "one hundred sixty-one million, fourteen thousand, one hundred eighty".