180645485 has 16 divisors (see below), whose sum is σ = 230040000. Its totient is φ = 135710976.

The previous prime is 180645449. The next prime is 180645497. The reversal of 180645485 is 584546081.

It is a cyclic number.

It is not a de Polignac number, because 180645485 - 2¹² = 180641389 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40286 + ... + 44544.

It is an arithmetic number, because the mean of its divisors is an integer number (14377500).

Almost surely, 2^180645485 is an apocalyptic number.

It is an amenable number.

180645485 is a deficient number, since it is larger than the sum of its proper divisors (49394515).

180645485 is a wasteful number, since it uses less digits than its factorization.

180645485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4780.

The product of its (nonzero) digits is 153600, while the sum is 41.

The square root of 180645485 is about 13440.4421430249. The cubic root of 180645485 is about 565.2957284438.

The spelling of 180645485 in words is "one hundred eighty million, six hundred forty-five thousand, four hundred eighty-five".