180924161 has 16 divisors (see below), whose sum is σ = 200368896. Its totient is φ = 163350000.

The previous prime is 180924157. The next prime is 180924167. The reversal of 180924161 is 161429081.

It is not a de Polignac number, because 180924161 - 2² = 180924157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180924167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240536 + ... + 241286.

It is an arithmetic number, because the mean of its divisors is an integer number (12523056).

Almost surely, 2^180924161 is an apocalyptic number.

180924161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

180924161 is a deficient number, since it is larger than the sum of its proper divisors (19444735).

180924161 is an equidigital number, since it uses as much as digits as its factorization.

180924161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 180924161 is about 13450.8052175325. The cubic root of 180924161 is about 565.5862669609.

The spelling of 180924161 in words is "one hundred eighty million, nine hundred twenty-four thousand, one hundred sixty-one".