115111080 has 192 divisors, whose sum is σ = 452874240. Its totient is φ = 24754176.

The previous prime is 115111069. The next prime is 115111103. The reversal of 115111080 is 80111511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41497 + ... + 44183.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2^115111080 is an apocalyptic number.

115111080 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 115111080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226437120).

115111080 is an abundant number, since it is smaller than the sum of its proper divisors (337763160).

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

115111080 is a wasteful number, since it uses less digits than its factorization.

115111080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2728 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

The square root of 115111080 is about 10728.9831764245. The cubic root of 115111080 is about 486.4509354301.

Adding to 115111080 its reverse (80111511), we get a palindrome (195222591).

The spelling of 115111080 in words is "one hundred fifteen million, one hundred eleven thousand, eighty".