222544493 has 2 divisors, whose sum is σ = 222544494. Its totient is φ = 222544492.

The previous prime is 222544477. The next prime is 222544499. The reversal of 222544493 is 394445222.

222544493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221801449 + 743044 = 14893^2 + 862^2 .

It is a cyclic number.

It is not a de Polignac number, because 222544493 - 2⁴ = 222544477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222544499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111272246 + 111272247.

It is an arithmetic number, because the mean of its divisors is an integer number (111272247).

Almost surely, 2^222544493 is an apocalyptic number.

It is an amenable number.

222544493 is a deficient number, since it is larger than the sum of its proper divisors (1).

222544493 is an equidigital number, since it uses as much as digits as its factorization.

222544493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 35.

The square root of 222544493 is about 14917.9252243735. The cubic root of 222544493 is about 605.9995252822. Note that the first 3 decimals are identical.

The spelling of 222544493 in words is "two hundred twenty-two million, five hundred forty-four thousand, four hundred ninety-three".