1421144339 has 2 divisors, whose sum is σ = 1421144340. Its totient is φ = 1421144338.

The previous prime is 1421144327. The next prime is 1421144341. The reversal of 1421144339 is 9334411241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421144339 - 2⁴ = 1421144323 is a prime.

Together with 1421144341, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1421104339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710572169 + 710572170.

It is an arithmetic number, because the mean of its divisors is an integer number (710572170).

Almost surely, 2^1421144339 is an apocalyptic number.

1421144339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421144339 is an equidigital number, since it uses as much as digits as its factorization.

1421144339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 1421144339 is about 37698.0681069999. The cubic root of 1421144339 is about 1124.2927146671.

The spelling of 1421144339 in words is "one billion, four hundred twenty-one million, one hundred forty-four thousand, three hundred thirty-nine".