83124157 has 2 divisors, whose sum is σ = 83124158. Its totient is φ = 83124156.

The previous prime is 83124149. The next prime is 83124161. The reversal of 83124157 is 75142138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79905721 + 3218436 = 8939^2 + 1794^2 .

It is a cyclic number.

It is not a de Polignac number, because 83124157 - 2³ = 83124149 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 (81124157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41562078 + 41562079.

It is an arithmetic number, because the mean of its divisors is an integer number (41562079).

Almost surely, 2^83124157 is an apocalyptic number.

It is an amenable number.

83124157 is a deficient number, since it is larger than the sum of its proper divisors (1).

83124157 is an equidigital number, since it uses as much as digits as its factorization.

83124157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 83124157 is about 9117.2450334517. The cubic root of 83124157 is about 436.4244614378.

The spelling of 83124157 in words is "eighty-three million, one hundred twenty-four thousand, one hundred fifty-seven".