115599000 has 256 divisors, whose sum is σ = 409743360. Its totient is φ = 26880000.

The previous prime is 115598981. The next prime is 115599023. The reversal of 115599000 is 995511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1022944 + ... + 1023056.

It is an arithmetic number, because the mean of its divisors is an integer number (1600560).

Almost surely, 2^115599000 is an apocalyptic number.

115599000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115599000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204871680).

115599000 is an abundant number, since it is smaller than the sum of its proper divisors (294144360).

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

115599000 is a wasteful number, since it uses less digits than its factorization.

115599000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 115599000 is about 10751.6975403887. The cubic root of 115599000 is about 487.1372712668.

The spelling of 115599000 in words is "one hundred fifteen million, five hundred ninety-nine thousand".