115781375 has 8 divisors (see below), whose sum is σ = 144495312. Its totient is φ = 92625000.

The previous prime is 115781363. The next prime is 115781381. The reversal of 115781375 is 573187511.

It is not a de Polignac number, because 115781375 - 2⁴ = 115781359 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 463001 + ... + 463250.

It is an arithmetic number, because the mean of its divisors is an integer number (18061914).

Almost surely, 2^115781375 is an apocalyptic number.

115781375 is a deficient number, since it is larger than the sum of its proper divisors (28713937).

115781375 is an frugal number, since it uses more digits than its factorization.

115781375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926266 (or 926256 counting only the distinct ones).

The product of its digits is 29400, while the sum is 38.

The square root of 115781375 is about 10760.1754167857. The cubic root of 115781375 is about 487.3933143708.

The spelling of 115781375 in words is "one hundred fifteen million, seven hundred eighty-one thousand, three hundred seventy-five".