83138123 has 8 divisors (see below), whose sum is σ = 86952096. Its totient is φ = 79340800.

The previous prime is 83138113. The next prime is 83138131. The reversal of 83138123 is 32183138.

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

It is not a de Polignac number, because 83138123 - 2¹² = 83134027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83138113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6683 + ... + 14523.

It is an arithmetic number, because the mean of its divisors is an integer number (10869012).

Almost surely, 2^83138123 is an apocalyptic number.

83138123 is a deficient number, since it is larger than the sum of its proper divisors (3813973).

83138123 is a wasteful number, since it uses less digits than its factorization.

83138123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325.

The product of its digits is 3456, while the sum is 29.

The square root of 83138123 is about 9118.0109124743. The cubic root of 83138123 is about 436.4489018368.

The spelling of 83138123 in words is "eighty-three million, one hundred thirty-eight thousand, one hundred twenty-three".