180144965 has 32 divisors (see below), whose sum is σ = 290255616. Its totient is φ = 103656960.

The previous prime is 180144941. The next prime is 180145001. The reversal of 180144965 is 569441081.

It is not a de Polignac number, because 180144965 - 2¹⁰ = 180143941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12992 + ... + 23001.

It is an arithmetic number, because the mean of its divisors is an integer number (9070488).

Almost surely, 2^180144965 is an apocalyptic number.

It is an amenable number.

180144965 is a deficient number, since it is larger than the sum of its proper divisors (110110651).

180144965 is a wasteful number, since it uses less digits than its factorization.

180144965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36029.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 180144965 is about 13421.8093042630. The cubic root of 180144965 is about 564.7731514204.

The spelling of 180144965 in words is "one hundred eighty million, one hundred forty-four thousand, nine hundred sixty-five".