120517530 has 128 divisors (see below), whose sum is σ = 343388160. Its totient is φ = 26503680.

The previous prime is 120517489. The next prime is 120517549. The reversal of 120517530 is 35715021.

It is a self number, because there is not a number n which added to its sum of digits gives 120517530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 879622 + ... + 879758.

It is an arithmetic number, because the mean of its divisors is an integer number (2682720).

Almost surely, 2^120517530 is an apocalyptic number.

120517530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120517530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171694080).

120517530 is an abundant number, since it is smaller than the sum of its proper divisors (222870630).

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

120517530 is a wasteful number, since it uses less digits than its factorization.

120517530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 120517530 is about 10978.0476406326. The cubic root of 120517530 is about 493.9504750190.

The spelling of 120517530 in words is "one hundred twenty million, five hundred seventeen thousand, five hundred thirty".