120539520 has 192 divisors, whose sum is σ = 441080640. Its totient is φ = 30228480.

The previous prime is 120539513. The next prime is 120539533. The reversal of 120539520 is 25935021.

120539520 is a `hidden beast` number, since 120 + 539 + 5 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97305 + ... + 98535.

It is an arithmetic number, because the mean of its divisors is an integer number (2297295).

Almost surely, 2^120539520 is an apocalyptic number.

120539520 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 120539520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220540320).

120539520 is an abundant number, since it is smaller than the sum of its proper divisors (320541120).

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

120539520 is a wasteful number, since it uses less digits than its factorization.

120539520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 120539520 is about 10979.0491391559. The cubic root of 120539520 is about 493.9805157673.

The spelling of 120539520 in words is "one hundred twenty million, five hundred thirty-nine thousand, five hundred twenty".