115120880 has 80 divisors (see below), whose sum is σ = 307521984. Its totient is φ = 39260160.

The previous prime is 115120879. The next prime is 115120913. The reversal of 115120880 is 88021511.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134534 + ... + 135386.

Almost surely, 2^115120880 is an apocalyptic number.

115120880 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 115120880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153760992).

115120880 is an abundant number, since it is smaller than the sum of its proper divisors (192401104).

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

115120880 is a wasteful number, since it uses less digits than its factorization.

115120880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 115120880 is about 10729.4398735442. The cubic root of 115120880 is about 486.4647397308.

The spelling of 115120880 in words is "one hundred fifteen million, one hundred twenty thousand, eight hundred eighty".