83242157 has 2 divisors, whose sum is σ = 83242158. Its totient is φ = 83242156.

The previous prime is 83242139. The next prime is 83242163. The reversal of 83242157 is 75124238.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57547396 + 25694761 = 7586^2 + 5069^2 .

It is a cyclic number.

It is not a de Polignac number, because 83242157 - 2⁸ = 83241901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83242127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41621078 + 41621079.

It is an arithmetic number, because the mean of its divisors is an integer number (41621079).

Almost surely, 2^83242157 is an apocalyptic number.

It is an amenable number.

83242157 is a deficient number, since it is larger than the sum of its proper divisors (1).

83242157 is an equidigital number, since it uses as much as digits as its factorization.

83242157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 32.

The square root of 83242157 is about 9123.7139915716. The cubic root of 83242157 is about 436.6308745081.

The spelling of 83242157 in words is "eighty-three million, two hundred forty-two thousand, one hundred fifty-seven".