116138878 has 4 divisors (see below), whose sum is σ = 174208320. Its totient is φ = 58069438.

The previous prime is 116138863. The next prime is 116138899. The reversal of 116138878 is 878831611.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29034718 + ... + 29034721.

It is an arithmetic number, because the mean of its divisors is an integer number (43552080).

Almost surely, 2^116138878 is an apocalyptic number.

116138878 is a deficient number, since it is larger than the sum of its proper divisors (58069442).

116138878 is an equidigital number, since it uses as much as digits as its factorization.

116138878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58069441.

The product of its digits is 64512, while the sum is 43.

The square root of 116138878 is about 10776.7749350165. The cubic root of 116138878 is about 487.8944471835.

The spelling of 116138878 in words is "one hundred sixteen million, one hundred thirty-eight thousand, eight hundred seventy-eight".