1442279 has 2 divisors, whose sum is σ = 1442280. Its totient is φ = 1442278.

The previous prime is 1442267. The next prime is 1442299. The reversal of 1442279 is 9722441.

It is a weak prime.

It is an emirp because it is prime and its reverse (9722441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442279 is a prime.

It is a Sophie Germain 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 (1442209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721139 + 721140.

It is an arithmetic number, because the mean of its divisors is an integer number (721140).

2^1442279 is an apocalyptic number.

1442279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442279 is an equidigital number, since it uses as much as digits as its factorization.

1442279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 1442279 is about 1200.9492079185. The cubic root of 1442279 is about 112.9838648745.

The spelling of 1442279 in words is "one million, four hundred forty-two thousand, two hundred seventy-nine".