161045180 has 12 divisors (see below), whose sum is σ = 338194920. Its totient is φ = 64418064.

The previous prime is 161045177. The next prime is 161045219. The reversal of 161045180 is 81540161.

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, 4026110 + ... + 4026149.

It is an arithmetic number, because the mean of its divisors is an integer number (28182910).

Almost surely, 2^161045180 is an apocalyptic number.

161045180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161045180 is an abundant number, since it is smaller than the sum of its proper divisors (177149740).

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

161045180 is a wasteful number, since it uses less digits than its factorization.

161045180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8052268 (or 8052266 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 161045180 is about 12690.3577569744. The cubic root of 161045180 is about 544.0630648845.

The spelling of 161045180 in words is "one hundred sixty-one million, forty-five thousand, one hundred eighty".