115203040 has 24 divisors (see below), whose sum is σ = 272167560. Its totient is φ = 46081152.

The previous prime is 115203031. The next prime is 115203043. The reversal of 115203040 is 40302511.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115203043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359850 + ... + 360169.

It is an arithmetic number, because the mean of its divisors is an integer number (11340315).

Almost surely, 2^115203040 is an apocalyptic number.

115203040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115203040 is an abundant number, since it is smaller than the sum of its proper divisors (156964520).

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

115203040 is an equidigital number, since it uses as much as digits as its factorization.

115203040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720034 (or 720026 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 115203040 is about 10733.2679087033. The cubic root of 115203040 is about 486.5804396763.

Adding to 115203040 its reverse (40302511), we get a palindrome (155505551).

The spelling of 115203040 in words is "one hundred fifteen million, two hundred three thousand, forty".