1442857223 has 2 divisors, whose sum is σ = 1442857224. Its totient is φ = 1442857222.

The previous prime is 1442857219. The next prime is 1442857301. The reversal of 1442857223 is 3227582441.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1442857223 - 2² = 1442857219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442854223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721428611 + 721428612.

It is an arithmetic number, because the mean of its divisors is an integer number (721428612).

Almost surely, 2^1442857223 is an apocalyptic number.

1442857223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442857223 is an equidigital number, since it uses as much as digits as its factorization.

1442857223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 38.

The square root of 1442857223 is about 37984.9604843812. The cubic root of 1442857223 is about 1129.9896161627.

The spelling of 1442857223 in words is "one billion, four hundred forty-two million, eight hundred fifty-seven thousand, two hundred twenty-three".