83081237 has 2 divisors, whose sum is σ = 83081238. Its totient is φ = 83081236.

The previous prime is 83081213. The next prime is 83081249. The reversal of 83081237 is 73218038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81884401 + 1196836 = 9049^2 + 1094^2 .

It is a cyclic number.

It is not a de Polignac number, because 83081237 - 2⁸ = 83080981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83081837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41540618 + 41540619.

It is an arithmetic number, because the mean of its divisors is an integer number (41540619).

Almost surely, 2^83081237 is an apocalyptic number.

It is an amenable number.

83081237 is a deficient number, since it is larger than the sum of its proper divisors (1).

83081237 is an equidigital number, since it uses as much as digits as its factorization.

83081237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 83081237 is about 9114.8909483328. The cubic root of 83081237 is about 436.3493346099.

The spelling of 83081237 in words is "eighty-three million, eighty-one thousand, two hundred thirty-seven".