115978286 has 16 divisors (see below), whose sum is σ = 175440384. Its totient is φ = 57500664.

The previous prime is 115978283. The next prime is 115978297. The reversal of 115978286 is 682879511.

It is a self number, because there is not a number n which added to its sum of digits gives 115978286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115978283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197285 + ... + 197871.

It is an arithmetic number, because the mean of its divisors is an integer number (10965024).

Almost surely, 2^115978286 is an apocalyptic number.

115978286 is a deficient number, since it is larger than the sum of its proper divisors (59462098).

115978286 is a wasteful number, since it uses less digits than its factorization.

115978286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255.

The product of its digits is 241920, while the sum is 47.

The square root of 115978286 is about 10769.3215199473. The cubic root of 115978286 is about 487.6694634166.

The spelling of 115978286 in words is "one hundred fifteen million, nine hundred seventy-eight thousand, two hundred eighty-six".