115858530 has 96 divisors (see below), whose sum is σ = 311148864. Its totient is φ = 29897088.

The previous prime is 115858529. The next prime is 115858537. The reversal of 115858530 is 35858511.

115858530 is a `hidden beast` number, since 115 + 8 + 5 + 8 + 530 = 666.

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 510277 + ... + 510503.

It is an arithmetic number, because the mean of its divisors is an integer number (3241134).

Almost surely, 2^115858530 is an apocalyptic number.

115858530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115858530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155574432).

115858530 is an abundant number, since it is smaller than the sum of its proper divisors (195290334).

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

115858530 is a wasteful number, since it uses less digits than its factorization.

115858530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The square root of 115858530 is about 10763.7600307699. The cubic root of 115858530 is about 487.5015542357.

The spelling of 115858530 in words is "one hundred fifteen million, eight hundred fifty-eight thousand, five hundred thirty".