83278115 has 8 divisors (see below), whose sum is σ = 101572368. Its totient is φ = 65530080.

The previous prime is 83278109. The next prime is 83278123. The reversal of 83278115 is 51187238.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83278115 - 2¹⁸ = 83015971 is a prime.

It is a Duffinian 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, 136217 + ... + 136826.

It is an arithmetic number, because the mean of its divisors is an integer number (12696546).

Almost surely, 2^83278115 is an apocalyptic number.

83278115 is a deficient number, since it is larger than the sum of its proper divisors (18294253).

83278115 is a wasteful number, since it uses less digits than its factorization.

83278115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273109.

The product of its digits is 13440, while the sum is 35.

The square root of 83278115 is about 9125.6843578989. The cubic root of 83278115 is about 436.6937357369.

The spelling of 83278115 in words is "eighty-three million, two hundred seventy-eight thousand, one hundred fifteen".