180917252 has 6 divisors (see below), whose sum is σ = 316605198. Its totient is φ = 90458624.

The previous prime is 180917251. The next prime is 180917263. The reversal of 180917252 is 252719081.

It can be written as a sum of positive squares in only one way, i.e., 100922116 + 79995136 = 10046^2 + 8944^2 .

It is not an unprimeable number, because it can be changed into a prime (180917251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22614653 + ... + 22614660.

It is an arithmetic number, because the mean of its divisors is an integer number (52767533).

Almost surely, 2^180917252 is an apocalyptic number.

It is an amenable number.

180917252 is a deficient number, since it is larger than the sum of its proper divisors (135687946).

180917252 is a wasteful number, since it uses less digits than its factorization.

180917252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45229317 (or 45229315 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 180917252 is about 13450.5483903074. The cubic root of 180917252 is about 565.5790674706.

The spelling of 180917252 in words is "one hundred eighty million, nine hundred seventeen thousand, two hundred fifty-two".