82160311 has 2 divisors, whose sum is σ = 82160312. Its totient is φ = 82160310.

The previous prime is 82160257. The next prime is 82160321. The reversal of 82160311 is 11306128.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82160311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82160321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41080155 + 41080156.

It is an arithmetic number, because the mean of its divisors is an integer number (41080156).

Almost surely, 2^82160311 is an apocalyptic number.

82160311 is a deficient number, since it is larger than the sum of its proper divisors (1).

82160311 is an equidigital number, since it uses as much as digits as its factorization.

82160311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 82160311 is about 9064.2325102570. The cubic root of 82160311 is about 434.7310814207.

Adding to 82160311 its reverse (11306128), we get a palindrome (93466439).

The spelling of 82160311 in words is "eighty-two million, one hundred sixty thousand, three hundred eleven".