1423244239 has 2 divisors, whose sum is σ = 1423244240. Its totient is φ = 1423244238.

The previous prime is 1423244189. The next prime is 1423244293. The reversal of 1423244239 is 9324423241.

Together with next prime (1423244293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423244239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423224239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711622119 + 711622120.

It is an arithmetic number, because the mean of its divisors is an integer number (711622120).

Almost surely, 2^1423244239 is an apocalyptic number.

1423244239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423244239 is an equidigital number, since it uses as much as digits as its factorization.

1423244239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 34.

The square root of 1423244239 is about 37725.9093859909. The cubic root of 1423244239 is about 1124.8461982994.

The spelling of 1423244239 in words is "one billion, four hundred twenty-three million, two hundred forty-four thousand, two hundred thirty-nine".