115032720 has 80 divisors (see below), whose sum is σ = 389028672. Its totient is φ = 27886080.

The previous prime is 115032719. The next prime is 115032721. The reversal of 115032720 is 27230511.

It is an interprime number because it is at equal distance from previous prime (115032719) and next prime (115032721).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (115032721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19147 + ... + 24426.

Almost surely, 2^115032720 is an apocalyptic number.

115032720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115032720 is an abundant number, since it is smaller than the sum of its proper divisors (273995952).

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

115032720 is a wasteful number, since it uses less digits than its factorization.

115032720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43600 (or 43594 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 115032720 is about 10725.3307641303. The cubic root of 115032720 is about 486.3405291801.

The spelling of 115032720 in words is "one hundred fifteen million, thirty-two thousand, seven hundred twenty".