83137239 has 8 divisors (see below), whose sum is σ = 123166320. Its totient is φ = 55424808.

The previous prime is 83137213. The next prime is 83137247. The reversal of 83137239 is 93273138.

It is a happy number.

It is not a de Polignac number, because 83137239 - 2⁵ = 83137207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83137279) 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, 1539552 + ... + 1539605.

It is an arithmetic number, because the mean of its divisors is an integer number (15395790).

Almost surely, 2^83137239 is an apocalyptic number.

83137239 is a deficient number, since it is larger than the sum of its proper divisors (40029081).

83137239 is a wasteful number, since it uses less digits than its factorization.

83137239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3079166 (or 3079160 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 83137239 is about 9117.9624368606. The cubic root of 83137239 is about 436.4473549244.

The spelling of 83137239 in words is "eighty-three million, one hundred thirty-seven thousand, two hundred thirty-nine".