115544000 has 224 divisors, whose sum is σ = 339498432. Its totient is φ = 38400000.

The previous prime is 115543991. The next prime is 115544003. The reversal of 115544000 is 445511.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115544003) 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, 1143950 + ... + 1144050.

It is an arithmetic number, because the mean of its divisors is an integer number (1515618).

Almost surely, 2^115544000 is an apocalyptic number.

115544000 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 115544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169749216).

115544000 is an abundant number, since it is smaller than the sum of its proper divisors (223954432).

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

115544000 is a wasteful number, since it uses less digits than its factorization.

115544000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 115544000 is about 10749.1395004437. The cubic root of 115544000 is about 487.0600018550.

Adding to 115544000 its reverse (445511), we get a palindrome (115989511).

The spelling of 115544000 in words is "one hundred fifteen million, five hundred forty-four thousand".