822227145 has 16 divisors (see below), whose sum is σ = 1316165760. Its totient is φ = 438320384.

The previous prime is 822227141. The next prime is 822227173. The reversal of 822227145 is 541722228.

It is a cyclic number.

It is not a de Polignac number, because 822227145 - 2² = 822227141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (822227141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24916 + ... + 47594.

It is an arithmetic number, because the mean of its divisors is an integer number (82260360).

Almost surely, 2^822227145 is an apocalyptic number.

It is an amenable number.

822227145 is a deficient number, since it is larger than the sum of its proper divisors (493938615).

822227145 is a wasteful number, since it uses less digits than its factorization.

822227145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25104.

The product of its digits is 17920, while the sum is 33.

The square root of 822227145 is about 28674.5033958742. The cubic root of 822227145 is about 936.8367888940.

The spelling of 822227145 in words is "eight hundred twenty-two million, two hundred twenty-seven thousand, one hundred forty-five".