115781356 has 48 divisors (see below), whose sum is σ = 225650880. Its totient is φ = 51701760.

The previous prime is 115781353. The next prime is 115781357. The reversal of 115781356 is 653187511.

It is not an unprimeable number, because it can be changed into a prime (115781353) 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 15 ways as a sum of consecutive naturals, for example, 282880 + ... + 283288.

It is an arithmetic number, because the mean of its divisors is an integer number (4701060).

Almost surely, 2^115781356 is an apocalyptic number.

It is an amenable number.

115781356 is a deficient number, since it is larger than the sum of its proper divisors (109869524).

115781356 is a wasteful number, since it uses less digits than its factorization.

115781356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634 (or 632 counting only the distinct ones).

The product of its digits is 25200, while the sum is 37.

The square root of 115781356 is about 10760.1745339005. The cubic root of 115781356 is about 487.3932877100.

The spelling of 115781356 in words is "one hundred fifteen million, seven hundred eighty-one thousand, three hundred fifty-six".