2223145447 has 2 divisors, whose sum is σ = 2223145448. Its totient is φ = 2223145446.

The previous prime is 2223145387. The next prime is 2223145459. The reversal of 2223145447 is 7445413222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2223145447 - 2⁷ = 2223145319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223149447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111572723 + 1111572724.

It is an arithmetic number, because the mean of its divisors is an integer number (1111572724).

Almost surely, 2^2223145447 is an apocalyptic number.

2223145447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223145447 is an equidigital number, since it uses as much as digits as its factorization.

2223145447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 34.

The square root of 2223145447 is about 47150.2433397750. The cubic root of 2223145447 is about 1305.1365705097.

Adding to 2223145447 its reverse (7445413222), we get a palindrome (9668558669).

The spelling of 2223145447 in words is "two billion, two hundred twenty-three million, one hundred forty-five thousand, four hundred forty-seven".