115378540 has 24 divisors (see below), whose sum is σ = 244651680. Its totient is φ = 45702528.

The previous prime is 115378531. The next prime is 115378657. The reversal of 115378540 is 45873511.

It is a happy number.

115378540 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

115378540 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 115378496 and 115378505.

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, 25945 + ... + 30064.

It is an arithmetic number, because the mean of its divisors is an integer number (10193820).

Almost surely, 2^115378540 is an apocalyptic number.

115378540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115378540 is an abundant number, since it is smaller than the sum of its proper divisors (129273140).

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

115378540 is a wasteful number, since it uses less digits than its factorization.

115378540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56121 (or 56119 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 115378540 is about 10741.4403131051. The cubic root of 115378540 is about 486.8273994220.

The spelling of 115378540 in words is "one hundred fifteen million, three hundred seventy-eight thousand, five hundred forty".