115011240 has 128 divisors (see below), whose sum is σ = 364953600. Its totient is φ = 28949760.

The previous prime is 115011233. The next prime is 115011257. The reversal of 115011240 is 42110511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159601 + ... + 160319.

It is an arithmetic number, because the mean of its divisors is an integer number (2851200).

Almost surely, 2^115011240 is an apocalyptic number.

115011240 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 115011240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182476800).

115011240 is an abundant number, since it is smaller than the sum of its proper divisors (249942360).

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

115011240 is a wasteful number, since it uses less digits than its factorization.

115011240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807 (or 803 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 115011240 is about 10724.3293496610. The cubic root of 115011240 is about 486.3102559243.

Adding to 115011240 its reverse (42110511), we get a palindrome (157121751).

The spelling of 115011240 in words is "one hundred fifteen million, eleven thousand, two hundred forty".