82140572 has 12 divisors (see below), whose sum is σ = 151311720. Its totient is φ = 38908656.

The previous prime is 82140563. The next prime is 82140599. The reversal of 82140572 is 27504128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540323 + ... + 540474.

It is an arithmetic number, because the mean of its divisors is an integer number (12609310).

Almost surely, 2^82140572 is an apocalyptic number.

It is an amenable number.

82140572 is a deficient number, since it is larger than the sum of its proper divisors (69171148).

82140572 is a wasteful number, since it uses less digits than its factorization.

82140572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080820 (or 1080818 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 82140572 is about 9063.1436047323. The cubic root of 82140572 is about 434.6962639441.

The spelling of 82140572 in words is "eighty-two million, one hundred forty thousand, five hundred seventy-two".