115851588 has 96 divisors (see below), whose sum is σ = 302346240. Its totient is φ = 34369920.

The previous prime is 115851581. The next prime is 115851641. The reversal of 115851588 is 885158511.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (115851581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261295 + ... + 261737.

It is an arithmetic number, because the mean of its divisors is an integer number (3149440).

Almost surely, 2^115851588 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 115851588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151173120).

115851588 is an abundant number, since it is smaller than the sum of its proper divisors (186494652).

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

115851588 is a wasteful number, since it uses less digits than its factorization.

115851588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 535 counting only the distinct ones).

The product of its digits is 64000, while the sum is 42.

The square root of 115851588 is about 10763.4375549821. The cubic root of 115851588 is about 487.4918173512.

The spelling of 115851588 in words is "one hundred fifteen million, eight hundred fifty-one thousand, five hundred eighty-eight".