120138180 has 24 divisors (see below), whose sum is σ = 336387072. Its totient is φ = 32036832.

The previous prime is 120138107. The next prime is 120138181. The reversal of 120138180 is 81831021.

120138180 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

120138180 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 120138180.

It is not an unprimeable number, because it can be changed into a prime (120138181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001092 + ... + 1001211.

It is an arithmetic number, because the mean of its divisors is an integer number (14016128).

Almost surely, 2^120138180 is an apocalyptic number.

120138180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120138180 is an abundant number, since it is smaller than the sum of its proper divisors (216248892).

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

120138180 is a wasteful number, since it uses less digits than its factorization.

120138180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002315 (or 2002313 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 120138180 is about 10960.7563607627. The cubic root of 120138180 is about 493.4316651244.

The spelling of 120138180 in words is "one hundred twenty million, one hundred thirty-eight thousand, one hundred eighty".