120520540 has 24 divisors (see below), whose sum is σ = 289249632. Its totient is φ = 41321280.

The previous prime is 120520523. The next prime is 120520541. The reversal of 120520540 is 45025021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120520541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430291 + ... + 430570.

It is an arithmetic number, because the mean of its divisors is an integer number (12052068).

Almost surely, 2^120520540 is an apocalyptic number.

120520540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120520540 is an abundant number, since it is smaller than the sum of its proper divisors (168729092).

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

120520540 is a wasteful number, since it uses less digits than its factorization.

120520540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860877 (or 860875 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 120520540 is about 10978.1847315483. The cubic root of 120520540 is about 493.9545872245.

Adding to 120520540 its reverse (45025021), we get a palindrome (165545561).

The spelling of 120520540 in words is "one hundred twenty million, five hundred twenty thousand, five hundred forty".