115144320 has 64 divisors (see below), whose sum is σ = 367028640. Its totient is φ = 30704640.

The previous prime is 115144307. The next prime is 115144331. The reversal of 115144320 is 23441511.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28066 + ... + 31905.

Almost surely, 2^115144320 is an apocalyptic number.

115144320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115144320 is an abundant number, since it is smaller than the sum of its proper divisors (251884320).

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

115144320 is an equidigital number, since it uses as much as digits as its factorization.

115144320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59993 (or 59981 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 115144320 is about 10730.5321396471. The cubic root of 115144320 is about 486.4977541868.

Adding to 115144320 its reverse (23441511), we get a palindrome (138585831).

The spelling of 115144320 in words is "one hundred fifteen million, one hundred forty-four thousand, three hundred twenty".