82180093 has 2 divisors, whose sum is σ = 82180094. Its totient is φ = 82180092.

The previous prime is 82180079. The next prime is 82180103. The reversal of 82180093 is 39008128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54952569 + 27227524 = 7413^2 + 5218^2 .

It is a cyclic number.

It is not a de Polignac number, because 82180093 - 2⁵ = 82180061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82180003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41090046 + 41090047.

It is an arithmetic number, because the mean of its divisors is an integer number (41090047).

Almost surely, 2^82180093 is an apocalyptic number.

It is an amenable number.

82180093 is a deficient number, since it is larger than the sum of its proper divisors (1).

82180093 is an equidigital number, since it uses as much as digits as its factorization.

82180093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 82180093 is about 9065.3236566600. The cubic root of 82180093 is about 434.7659691503.

The spelling of 82180093 in words is "eighty-two million, one hundred eighty thousand, ninety-three".