115781376 has 72 divisors (see below), whose sum is σ = 315748944. Its totient is φ = 37642240.

The previous prime is 115781363. The next prime is 115781381. The reversal of 115781376 is 673187511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29650 + ... + 33326.

It is an arithmetic number, because the mean of its divisors is an integer number (4385402).

Almost surely, 2^115781376 is an apocalyptic number.

115781376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115781376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157874472).

115781376 is an abundant number, since it is smaller than the sum of its proper divisors (199967568).

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

115781376 is an equidigital number, since it uses as much as digits as its factorization.

115781376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3737 (or 3723 counting only the distinct ones).

The product of its digits is 35280, while the sum is 39.

The square root of 115781376 is about 10760.1754632534. The cubic root of 115781376 is about 487.3933157740.

The spelling of 115781376 in words is "one hundred fifteen million, seven hundred eighty-one thousand, three hundred seventy-six".