180870964 has 12 divisors (see below), whose sum is σ = 319326084. Its totient is φ = 89634944.

The previous prime is 180870961. The next prime is 180870979. The reversal of 180870964 is 469078081.

It can be written as a sum of positive squares in 2 ways, for example, as 76422564 + 104448400 = 8742^2 + 10220^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 180870964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180870961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199627 + ... + 200530.

It is an arithmetic number, because the mean of its divisors is an integer number (26610507).

Almost surely, 2^180870964 is an apocalyptic number.

It is an amenable number.

180870964 is a deficient number, since it is larger than the sum of its proper divisors (138455120).

180870964 is a wasteful number, since it uses less digits than its factorization.

180870964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400274 (or 400272 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 180870964 is about 13448.8276068957. The cubic root of 180870964 is about 565.5308285536.

The spelling of 180870964 in words is "one hundred eighty million, eight hundred seventy thousand, nine hundred sixty-four".