82158863 has 2 divisors, whose sum is σ = 82158864. Its totient is φ = 82158862.

The previous prime is 82158821. The next prime is 82158871. The reversal of 82158863 is 36885128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82158863 - 2⁸ = 82158607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82158863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82158803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41079431 + 41079432.

It is an arithmetic number, because the mean of its divisors is an integer number (41079432).

Almost surely, 2^82158863 is an apocalyptic number.

82158863 is a deficient number, since it is larger than the sum of its proper divisors (1).

82158863 is an equidigital number, since it uses as much as digits as its factorization.

82158863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 41.

The square root of 82158863 is about 9064.1526355198. The cubic root of 82158863 is about 434.7285274937.

The spelling of 82158863 in words is "eighty-two million, one hundred fifty-eight thousand, eight hundred sixty-three".