115011878 has 4 divisors (see below), whose sum is σ = 172517820. Its totient is φ = 57505938.

The previous prime is 115011877. The next prime is 115011881. The reversal of 115011878 is 878110511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878110511 = 59 ⋅14883229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115011877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28752968 + ... + 28752971.

It is an arithmetic number, because the mean of its divisors is an integer number (43129455).

Almost surely, 2^115011878 is an apocalyptic number.

115011878 is a deficient number, since it is larger than the sum of its proper divisors (57505942).

115011878 is an equidigital number, since it uses as much as digits as its factorization.

115011878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57505941.

The product of its (nonzero) digits is 2240, while the sum is 32.

The square root of 115011878 is about 10724.3590950695. The cubic root of 115011878 is about 486.3111551563.

It can be divided in two parts, 11501 and 1878, that multiplied together give a triangular number (21598878 = T₆₅₇₂).

The spelling of 115011878 in words is "one hundred fifteen million, eleven thousand, eight hundred seventy-eight".