8144365 has 4 divisors (see below), whose sum is σ = 9773244. Its totient is φ = 6515488.

The previous prime is 8144359. The next prime is 8144387. The reversal of 8144365 is 5634418.

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 1394761 + 6749604 = 1181^2 + 2598^2 .

It is a cyclic number.

It is not a de Polignac number, because 8144365 - 2⁷ = 8144237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814432 + ... + 814441.

It is an arithmetic number, because the mean of its divisors is an integer number (2443311).

Almost surely, 2^8144365 is an apocalyptic number.

It is an amenable number.

8144365 is a deficient number, since it is larger than the sum of its proper divisors (1628879).

8144365 is a wasteful number, since it uses less digits than its factorization.

8144365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628878.

The product of its digits is 11520, while the sum is 31.

The square root of 8144365 is about 2853.8333868676. The cubic root of 8144365 is about 201.1958768079.

The spelling of 8144365 in words is "eight million, one hundred forty-four thousand, three hundred sixty-five".