144223361 has 2 divisors, whose sum is σ = 144223362. Its totient is φ = 144223360.

The previous prime is 144223301. The next prime is 144223367. The reversal of 144223361 is 163322441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113209600 + 31013761 = 10640^2 + 5569^2 .

It is an emirp because it is prime and its reverse (163322441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144223361 - 2¹⁸ = 143961217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144223361.

It is not a weakly prime, because it can be changed into another prime (144223367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72111680 + 72111681.

It is an arithmetic number, because the mean of its divisors is an integer number (72111681).

Almost surely, 2^144223361 is an apocalyptic number.

It is an amenable number.

144223361 is a deficient number, since it is larger than the sum of its proper divisors (1).

144223361 is an equidigital number, since it uses as much as digits as its factorization.

144223361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

The square root of 144223361 is about 12009.3031021787. The cubic root of 144223361 is about 524.4191441284.

The spelling of 144223361 in words is "one hundred forty-four million, two hundred twenty-three thousand, three hundred sixty-one".