82045731 has 4 divisors (see below), whose sum is σ = 109394312. Its totient is φ = 54697152.

The previous prime is 82045729. The next prime is 82045739. The reversal of 82045731 is 13754028.

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

It is not a de Polignac number, because 82045731 - 2¹ = 82045729 is a prime.

It is a super-2 number, since 2×82045731² = 13463003950648722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82045739) 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, 13674286 + ... + 13674291.

It is an arithmetic number, because the mean of its divisors is an integer number (27348578).

Almost surely, 2^82045731 is an apocalyptic number.

82045731 is a deficient number, since it is larger than the sum of its proper divisors (27348581).

82045731 is a wasteful number, since it uses less digits than its factorization.

82045731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27348580.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 82045731 is about 9057.9098582399. The cubic root of 82045731 is about 434.5288967722.

Adding to 82045731 its reverse (13754028), we get a palindrome (95799759).

The spelling of 82045731 in words is "eighty-two million, forty-five thousand, seven hundred thirty-one".