120512140 has 48 divisors (see below), whose sum is σ = 291481344. Its totient is φ = 40996800.

The previous prime is 120512137. The next prime is 120512173. The reversal of 120512140 is 41215021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15055 + ... + 21625.

It is an arithmetic number, because the mean of its divisors is an integer number (6072528).

Almost surely, 2^120512140 is an apocalyptic number.

120512140 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 120512140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145740672).

120512140 is an abundant number, since it is smaller than the sum of its proper divisors (170969204).

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

120512140 is a wasteful number, since it uses less digits than its factorization.

120512140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718 (or 6716 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 120512140 is about 10977.8021479712. The cubic root of 120512140 is about 493.9431111310.

Adding to 120512140 its reverse (41215021), we get a palindrome (161727161).

The spelling of 120512140 in words is "one hundred twenty million, five hundred twelve thousand, one hundred forty".