82752143 has 4 divisors (see below), whose sum is σ = 83885808. Its totient is φ = 81618480.

The previous prime is 82752139. The next prime is 82752149. The reversal of 82752143 is 34125728.

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 82752143 - 2² = 82752139 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 (82752149) 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, 566723 + ... + 566868.

It is an arithmetic number, because the mean of its divisors is an integer number (20971452).

Almost surely, 2^82752143 is an apocalyptic number.

82752143 is a deficient number, since it is larger than the sum of its proper divisors (1133665).

82752143 is a wasteful number, since it uses less digits than its factorization.

82752143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133664.

The product of its digits is 13440, while the sum is 32.

The square root of 82752143 is about 9096.8204885004. The cubic root of 82752143 is about 435.7724294964.

The spelling of 82752143 in words is "eighty-two million, seven hundred fifty-two thousand, one hundred forty-three".