115320520 has 96 divisors (see below), whose sum is σ = 319681080. Its totient is φ = 37201920.

The previous prime is 115320473. The next prime is 115320553. The reversal of 115320520 is 25023511.

It can be written as a sum of positive squares in 4 ways, for example, as 90897156 + 24423364 = 9534^2 + 4942^2 .

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, 31590 + ... + 35050.

Almost surely, 2^115320520 is an apocalyptic number.

115320520 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 115320520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159840540).

115320520 is an abundant number, since it is smaller than the sum of its proper divisors (204360560).

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

115320520 is a wasteful number, since it uses less digits than its factorization.

115320520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503 (or 3492 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 115320520 is about 10738.7392183626. The cubic root of 115320520 is about 486.7457826798.

The spelling of 115320520 in words is "one hundred fifteen million, three hundred twenty thousand, five hundred twenty".