180139180 has 48 divisors (see below), whose sum is σ = 413015904. Its totient is φ = 65594880.

The previous prime is 180139153. The next prime is 180139181. The reversal of 180139180 is 81931081.

It is not an unprimeable number, because it can be changed into a prime (180139181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14235 + ... + 23725.

It is an arithmetic number, because the mean of its divisors is an integer number (8604498).

Almost surely, 2^180139180 is an apocalyptic number.

180139180 is a gapful number since it is divisible by the number (10) 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 180139180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206507952).

180139180 is an abundant number, since it is smaller than the sum of its proper divisors (232876724).

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

180139180 is a wasteful number, since it uses less digits than its factorization.

180139180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9586 (or 9584 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 180139180 is about 13421.5937950752. The cubic root of 180139180 is about 564.7671058306.

The spelling of 180139180 in words is "one hundred eighty million, one hundred thirty-nine thousand, one hundred eighty".