82167271 has 2 divisors, whose sum is σ = 82167272. Its totient is φ = 82167270.

The previous prime is 82167223. The next prime is 82167287. The reversal of 82167271 is 17276128.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82167271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82167971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41083635 + 41083636.

It is an arithmetic number, because the mean of its divisors is an integer number (41083636).

Almost surely, 2^82167271 is an apocalyptic number.

82167271 is a deficient number, since it is larger than the sum of its proper divisors (1).

82167271 is an equidigital number, since it uses as much as digits as its factorization.

82167271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 34.

The square root of 82167271 is about 9064.6164287299. The cubic root of 82167271 is about 434.7433567836.

The spelling of 82167271 in words is "eighty-two million, one hundred sixty-seven thousand, two hundred seventy-one".