115029720 has 160 divisors (see below), whose sum is σ = 416520720. Its totient is φ = 28304640.

The previous prime is 115029697. The next prime is 115029731. The reversal of 115029720 is 27920511.

It is a super-3 number, since 3×115029720³ (a number of 25 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 40755 + ... + 43485.

Almost surely, 2^115029720 is an apocalyptic number.

115029720 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 115029720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208260360).

115029720 is an abundant number, since it is smaller than the sum of its proper divisors (301491000).

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

115029720 is a wasteful number, since it uses less digits than its factorization.

115029720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 115029720 is about 10725.1909073918. The cubic root of 115029720 is about 486.3363012982.

The spelling of 115029720 in words is "one hundred fifteen million, twenty-nine thousand, seven hundred twenty".