115186540 has 24 divisors (see below), whose sum is σ = 276448032. Its totient is φ = 39492480.

The previous prime is 115186537. The next prime is 115186549. The reversal of 115186540 is 45681511.

It is not an unprimeable number, because it can be changed into a prime (115186549) 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 7 ways as a sum of consecutive naturals, for example, 411241 + ... + 411520.

It is an arithmetic number, because the mean of its divisors is an integer number (11518668).

Almost surely, 2^115186540 is an apocalyptic number.

115186540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115186540 is an abundant number, since it is smaller than the sum of its proper divisors (161261492).

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

115186540 is a wasteful number, since it uses less digits than its factorization.

115186540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822777 (or 822775 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 115186540 is about 10732.4992429536. The cubic root of 115186540 is about 486.5572083432.

The spelling of 115186540 in words is "one hundred fifteen million, one hundred eighty-six thousand, five hundred forty".