83818045 has 4 divisors (see below), whose sum is σ = 100581660. Its totient is φ = 67054432.

The previous prime is 83818037. The next prime is 83818067. The reversal of 83818045 is 54081838.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54081838 = 2 ⋅27040919.

It can be written as a sum of positive squares in 2 ways, for example, as 51065316 + 32752729 = 7146^2 + 5723^2 .

It is a cyclic number.

It is not a de Polignac number, because 83818045 - 2³ = 83818037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83817995 and 83818013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8381800 + ... + 8381809.

It is an arithmetic number, because the mean of its divisors is an integer number (25145415).

Almost surely, 2^83818045 is an apocalyptic number.

It is an amenable number.

83818045 is a deficient number, since it is larger than the sum of its proper divisors (16763615).

83818045 is a wasteful number, since it uses less digits than its factorization.

83818045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16763614.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 83818045 is about 9155.2195495247. The cubic root of 83818045 is about 437.6354649898.

The spelling of 83818045 in words is "eighty-three million, eight hundred eighteen thousand, forty-five".