82134271 has 4 divisors (see below), whose sum is σ = 83259472. Its totient is φ = 81009072.

The previous prime is 82134263. The next prime is 82134287. The reversal of 82134271 is 17243128.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82134271 - 2³ = 82134263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82134571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562491 + ... + 562636.

It is an arithmetic number, because the mean of its divisors is an integer number (20814868).

Almost surely, 2^82134271 is an apocalyptic number.

82134271 is a deficient number, since it is larger than the sum of its proper divisors (1125201).

82134271 is a wasteful number, since it uses less digits than its factorization.

82134271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125200.

The product of its digits is 2688, while the sum is 28.

The square root of 82134271 is about 9062.7959813735. The cubic root of 82134271 is about 434.6851484822.

Adding to 82134271 its reverse (17243128), we get a palindrome (99377399).

The spelling of 82134271 in words is "eighty-two million, one hundred thirty-four thousand, two hundred seventy-one".