8144285 has 4 divisors (see below), whose sum is σ = 9773148. Its totient is φ = 6515424.

The previous prime is 8144267. The next prime is 8144291. The reversal of 8144285 is 5824418.

It is a happy number.

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 5769604 + 2374681 = 2402^2 + 1541^2 .

It is a cyclic number.

It is not a de Polignac number, because 8144285 - 2⁶ = 8144221 is a prime.

It is a super-2 number, since 2×8144285² = 132658756322450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814424 + ... + 814433.

It is an arithmetic number, because the mean of its divisors is an integer number (2443287).

Almost surely, 2^8144285 is an apocalyptic number.

It is an amenable number.

8144285 is a deficient number, since it is larger than the sum of its proper divisors (1628863).

8144285 is a wasteful number, since it uses less digits than its factorization.

8144285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628862.

The product of its digits is 10240, while the sum is 32.

The square root of 8144285 is about 2853.8193705979. The cubic root of 8144285 is about 201.1952180406.

The spelling of 8144285 in words is "eight million, one hundred forty-four thousand, two hundred eighty-five".