115744128 has 64 divisors (see below), whose sum is σ = 311732400. Its totient is φ = 38043648.

The previous prime is 115744121. The next prime is 115744199. The reversal of 115744128 is 821447511.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115744121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25968 + ... + 30096.

Almost surely, 2^115744128 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 115744128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155866200).

115744128 is an abundant number, since it is smaller than the sum of its proper divisors (195988272).

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

115744128 is an equidigital number, since it uses as much as digits as its factorization.

115744128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219 (or 4207 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 115744128 is about 10758.4444972310. Note that the first 4 decimals coincide. The cubic root of 115744128 is about 487.3410437707.

The spelling of 115744128 in words is "one hundred fifteen million, seven hundred forty-four thousand, one hundred twenty-eight".