1144223473 has 2 divisors, whose sum is σ = 1144223474. Its totient is φ = 1144223472.

The previous prime is 1144223441. The next prime is 1144223497. The reversal of 1144223473 is 3743224411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 896223969 + 247999504 = 29937^2 + 15748^2 .

It is an emirp because it is prime and its reverse (3743224411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1144223473 - 2⁵ = 1144223441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1144223173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572111736 + 572111737.

It is an arithmetic number, because the mean of its divisors is an integer number (572111737).

Almost surely, 2^1144223473 is an apocalyptic number.

It is an amenable number.

1144223473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144223473 is an equidigital number, since it uses as much as digits as its factorization.

1144223473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 1144223473 is about 33826.3724481358. The cubic root of 1144223473 is about 1045.9324028597.

Adding to 1144223473 its reverse (3743224411), we get a palindrome (4887447884).

The spelling of 1144223473 in words is "one billion, one hundred forty-four million, two hundred twenty-three thousand, four hundred seventy-three".