180771912 has 80 divisors (see below), whose sum is σ = 522720000. Its totient is φ = 58307040.

The previous prime is 180771907. The next prime is 180771967. The reversal of 180771912 is 219177081.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15589 + ... + 24587.

It is an arithmetic number, because the mean of its divisors is an integer number (6534000).

Almost surely, 2^180771912 is an apocalyptic number.

180771912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180771912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261360000).

180771912 is an abundant number, since it is smaller than the sum of its proper divisors (341948088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

180771912 is a wasteful number, since it uses less digits than its factorization.

180771912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9048 (or 9035 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The square root of 180771912 is about 13445.1445511010. The cubic root of 180771912 is about 565.4275741171.

The spelling of 180771912 in words is "one hundred eighty million, seven hundred seventy-one thousand, nine hundred twelve".