82745169 has 32 divisors (see below), whose sum is σ = 124185600. Its totient is φ = 48660480.

The previous prime is 82745167. The next prime is 82745183. The reversal of 82745169 is 96154728.

It is not a de Polignac number, because 82745169 - 2¹ = 82745167 is a prime.

It is a super-2 number, since 2×82745169² = 13693525985677122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82745169.

It is not an unprimeable number, because it can be changed into a prime (82745161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107217 + ... + 107985.

It is an arithmetic number, because the mean of its divisors is an integer number (3880800).

Almost surely, 2^82745169 is an apocalyptic number.

82745169 is a gapful number since it is divisible by the number (89) formed by its first and last digit.

It is an amenable number.

82745169 is a deficient number, since it is larger than the sum of its proper divisors (41440431).

82745169 is a wasteful number, since it uses less digits than its factorization.

82745169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its digits is 120960, while the sum is 42.

The square root of 82745169 is about 9096.4371596796. The cubic root of 82745169 is about 435.7601874678.

The spelling of 82745169 in words is "eighty-two million, seven hundred forty-five thousand, one hundred sixty-nine".