180477956 has 6 divisors (see below), whose sum is σ = 315836430. Its totient is φ = 90238976.

The previous prime is 180477943. The next prime is 180477959. The reversal of 180477956 is 659774081.

180477956 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 146652100 + 33825856 = 12110^2 + 5816^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 180477956.

It is not an unprimeable number, because it can be changed into a prime (180477959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22559741 + ... + 22559748.

It is an arithmetic number, because the mean of its divisors is an integer number (52639405).

Almost surely, 2^180477956 is an apocalyptic number.

It is an amenable number.

180477956 is a deficient number, since it is larger than the sum of its proper divisors (135358474).

180477956 is a wasteful number, since it uses less digits than its factorization.

180477956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45119493 (or 45119491 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 180477956 is about 13434.2084247640. The cubic root of 180477956 is about 565.1209243353.

The spelling of 180477956 in words is "one hundred eighty million, four hundred seventy-seven thousand, nine hundred fifty-six".