115240009724 has 24 divisors (see below), whose sum is σ = 230487290880. Its totient is φ = 49387017456.

The previous prime is 115240009721. The next prime is 115240009727. The reversal of 115240009724 is 427900042511.

It is an interprime number because it is at equal distance from previous prime (115240009721) and next prime (115240009727).

It is a super-2 number, since 2×115240009724² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115240009721) 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, 1501409 + ... + 1576295.

It is an arithmetic number, because the mean of its divisors is an integer number (9603637120).

Almost surely, 2^115240009724 is an apocalyptic number.

115240009724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

115240009724 is an abundant number, since it is smaller than the sum of its proper divisors (115247281156).

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

115240009724 is a wasteful number, since it uses less digits than its factorization.

115240009724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129857 (or 129855 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 115240009724 in words is "one hundred fifteen billion, two hundred forty million, nine thousand, seven hundred twenty-four".