115858536 has 64 divisors (see below), whose sum is σ = 311947200. Its totient is φ = 35724288.

The previous prime is 115858529. The next prime is 115858537. The reversal of 115858536 is 635858511.

It is not an unprimeable number, because it can be changed into a prime (115858537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21666 + ... + 26478.

It is an arithmetic number, because the mean of its divisors is an integer number (4874175).

Almost surely, 2^115858536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115858536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155973600).

115858536 is an abundant number, since it is smaller than the sum of its proper divisors (196088664).

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

115858536 is a wasteful number, since it uses less digits than its factorization.

115858536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898 (or 4894 counting only the distinct ones).

The product of its digits is 144000, while the sum is 42.

The square root of 115858536 is about 10763.7603094829. The cubic root of 115858536 is about 487.5015626511.

The spelling of 115858536 in words is "one hundred fifteen million, eight hundred fifty-eight thousand, five hundred thirty-six".