82398157 has 2 divisors, whose sum is σ = 82398158. Its totient is φ = 82398156.

The previous prime is 82398137. The next prime is 82398181. The reversal of 82398157 is 75189328.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72948681 + 9449476 = 8541^2 + 3074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82398157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82398137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41199078 + 41199079.

It is an arithmetic number, because the mean of its divisors is an integer number (41199079).

Almost surely, 2^82398157 is an apocalyptic number.

It is an amenable number.

82398157 is a deficient number, since it is larger than the sum of its proper divisors (1).

82398157 is an equidigital number, since it uses as much as digits as its factorization.

82398157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 43.

The square root of 82398157 is about 9077.3430584065. The cubic root of 82398157 is about 435.1501784722.

The spelling of 82398157 in words is "eighty-two million, three hundred ninety-eight thousand, one hundred fifty-seven".