115486078 has 4 divisors (see below), whose sum is σ = 173229120. Its totient is φ = 57743038.

The previous prime is 115486061. The next prime is 115486079. The reversal of 115486078 is 870684511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870684511 = 43 ⋅20248477.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 115486078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115486079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28871518 + ... + 28871521.

It is an arithmetic number, because the mean of its divisors is an integer number (43307280).

Almost surely, 2^115486078 is an apocalyptic number.

115486078 is a deficient number, since it is larger than the sum of its proper divisors (57743042).

115486078 is an equidigital number, since it uses as much as digits as its factorization.

115486078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57743041.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 115486078 is about 10746.4449005241. Note that the first 3 decimals coincide. The cubic root of 115486078 is about 486.9786008163.

The spelling of 115486078 in words is "one hundred fifteen million, four hundred eighty-six thousand, seventy-eight".