82543151 has 4 divisors (see below), whose sum is σ = 82564032. Its totient is φ = 82522272.

The previous prime is 82543147. The next prime is 82543171. The reversal of 82543151 is 15134528.

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 82543151 - 2² = 82543147 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 (82543121) 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, 2495 + ... + 13088.

It is an arithmetic number, because the mean of its divisors is an integer number (20641008).

Almost surely, 2^82543151 is an apocalyptic number.

82543151 is a deficient number, since it is larger than the sum of its proper divisors (20881).

82543151 is a wasteful number, since it uses less digits than its factorization.

82543151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20880.

The product of its digits is 4800, while the sum is 29.

The square root of 82543151 is about 9085.3261361384. The cubic root of 82543151 is about 435.4052699087.

Adding to 82543151 its reverse (15134528), we get a palindrome (97677679).

The spelling of 82543151 in words is "eighty-two million, five hundred forty-three thousand, one hundred fifty-one".