8227145 has 4 divisors (see below), whose sum is σ = 9872580. Its totient is φ = 6581712.

The previous prime is 8227127. The next prime is 8227159. The reversal of 8227145 is 5417228.

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 3400336 + 4826809 = 1844^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 8227145 - 2⁶ = 8227081 is a prime.

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, 822710 + ... + 822719.

It is an arithmetic number, because the mean of its divisors is an integer number (2468145).

Almost surely, 2^8227145 is an apocalyptic number.

It is an amenable number.

8227145 is a deficient number, since it is larger than the sum of its proper divisors (1645435).

8227145 is a wasteful number, since it uses less digits than its factorization.

8227145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645434.

The product of its digits is 4480, while the sum is 29.

The square root of 8227145 is about 2868.3000191751. The cubic root of 8227145 is about 201.8752374696.

The spelling of 8227145 in words is "eight million, two hundred twenty-seven thousand, one hundred forty-five".