115782140 has 12 divisors (see below), whose sum is σ = 243142536. Its totient is φ = 46312848.

The previous prime is 115782133. The next prime is 115782151. The reversal of 115782140 is 41287511.

It is a congruent number.

It is an unprimeable number.

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, 2894534 + ... + 2894573.

It is an arithmetic number, because the mean of its divisors is an integer number (20261878).

Almost surely, 2^115782140 is an apocalyptic number.

115782140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115782140 is an abundant number, since it is smaller than the sum of its proper divisors (127360396).

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

115782140 is a wasteful number, since it uses less digits than its factorization.

115782140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789116 (or 5789114 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 115782140 is about 10760.2109644746. The cubic root of 115782140 is about 487.3943878165.

The spelling of 115782140 in words is "one hundred fifteen million, seven hundred eighty-two thousand, one hundred forty".