83506165 has 4 divisors (see below), whose sum is σ = 100207404. Its totient is φ = 66804928.

The previous prime is 83506147. The next prime is 83506177. The reversal of 83506165 is 56160538.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9012004 + 74494161 = 3002^2 + 8631^2 .

It is a cyclic number.

It is not a de Polignac number, because 83506165 - 2⁷ = 83506037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83506165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8350612 + ... + 8350621.

It is an arithmetic number, because the mean of its divisors is an integer number (25051851).

Almost surely, 2^83506165 is an apocalyptic number.

It is an amenable number.

83506165 is a deficient number, since it is larger than the sum of its proper divisors (16701239).

83506165 is a wasteful number, since it uses less digits than its factorization.

83506165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16701238.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 83506165 is about 9138.1707688136. The cubic root of 83506165 is about 437.0919885875.

The spelling of 83506165 in words is "eighty-three million, five hundred six thousand, one hundred sixty-five".