115725040 has 40 divisors (see below), whose sum is σ = 275326128. Its totient is φ = 45212160.

The previous prime is 115725031. The next prime is 115725047. The reversal of 115725040 is 40527511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 115724996 and 115725014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115725047) 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, 13381 + ... + 20260.

Almost surely, 2^115725040 is an apocalyptic number.

115725040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115725040 is an abundant number, since it is smaller than the sum of its proper divisors (159601088).

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

115725040 is a wasteful number, since it uses less digits than its factorization.

115725040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33697 (or 33691 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 115725040 is about 10757.5573435609. The cubic root of 115725040 is about 487.3142522683.

The spelling of 115725040 in words is "one hundred fifteen million, seven hundred twenty-five thousand, forty".