115545000 has 80 divisors (see below), whose sum is σ = 361009440. Its totient is φ = 30808000.

The previous prime is 115544987. The next prime is 115545007. The reversal of 115545000 is 545511.

It is not an unprimeable number, because it can be changed into a prime (115545007) 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 19 ways as a sum of consecutive naturals, for example, 11149 + ... + 18851.

It is an arithmetic number, because the mean of its divisors is an integer number (4512618).

Almost surely, 2^115545000 is an apocalyptic number.

115545000 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 115545000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180504720).

115545000 is an abundant number, since it is smaller than the sum of its proper divisors (245464440).

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

115545000 is an equidigital number, since it uses as much as digits as its factorization.

115545000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732 (or 7713 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 115545000 is about 10749.1860156944. The cubic root of 115545000 is about 487.0614069723.

The spelling of 115545000 in words is "one hundred fifteen million, five hundred forty-five thousand".