120544140 has 24 divisors (see below), whose sum is σ = 337523760. Its totient is φ = 32145088.

The previous prime is 120544121. The next prime is 120544147. The reversal of 120544140 is 41445021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (120544147) 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, 1004475 + ... + 1004594.

It is an arithmetic number, because the mean of its divisors is an integer number (14063490).

Almost surely, 2^120544140 is an apocalyptic number.

120544140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120544140 is an abundant number, since it is smaller than the sum of its proper divisors (216979620).

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

120544140 is a wasteful number, since it uses less digits than its factorization.

120544140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009081 (or 2009079 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 120544140 is about 10979.2595378741. The cubic root of 120544140 is about 493.9868267289.

Adding to 120544140 its reverse (41445021), we get a palindrome (161989161).

The spelling of 120544140 in words is "one hundred twenty million, five hundred forty-four thousand, one hundred forty".