83155138 has 8 divisors (see below), whose sum is σ = 136072080. Its totient is φ = 37797780.

The previous prime is 83155099. The next prime is 83155141.

83155138 is nontrivially palindromic in base 3 and base 10.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1889868 + ... + 1889911.

It is an arithmetic number, because the mean of its divisors is an integer number (17009010).

Almost surely, 2^83155138 is an apocalyptic number.

83155138 is a deficient number, since it is larger than the sum of its proper divisors (52916942).

83155138 is a wasteful number, since it uses less digits than its factorization.

83155138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779792.

The product of its digits is 14400, while the sum is 34.

The square root of 83155138 is about 9118.9439081508. The cubic root of 83155138 is about 436.4786742655.

The spelling of 83155138 in words is "eighty-three million, one hundred fifty-five thousand, one hundred thirty-eight".