115240681 has 8 divisors (see below), whose sum is σ = 124585280. Its totient is φ = 106224048.

The previous prime is 115240679. The next prime is 115240687. The reversal of 115240681 is 186042511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115240681 - 2¹ = 115240679 is a prime.

It is a super-2 number, since 2×115240681² = 26560829114687522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115240687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81261 + ... + 82666.

It is an arithmetic number, because the mean of its divisors is an integer number (15573160).

Almost surely, 2^115240681 is an apocalyptic number.

It is an amenable number.

115240681 is a deficient number, since it is larger than the sum of its proper divisors (9344599).

115240681 is a wasteful number, since it uses less digits than its factorization.

115240681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163983.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 115240681 is about 10735.0212389170. The cubic root of 115240681 is about 486.6334283819.

It can be divided in two parts, 115240 and 681, that added together give a triangular number (115921 = T₄₈₁).

The spelling of 115240681 in words is "one hundred fifteen million, two hundred forty thousand, six hundred eighty-one".