1421035439 has 2 divisors, whose sum is σ = 1421035440. Its totient is φ = 1421035438.

The previous prime is 1421035379. The next prime is 1421035471. The reversal of 1421035439 is 9345301241.

It is an a-pointer prime, because the next prime (1421035471) can be obtained adding 1421035439 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421035439 - 2⁸ = 1421035183 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421035039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710517719 + 710517720.

It is an arithmetic number, because the mean of its divisors is an integer number (710517720).

Almost surely, 2^1421035439 is an apocalyptic number.

1421035439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421035439 is an equidigital number, since it uses as much as digits as its factorization.

1421035439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1421035439 is about 37696.6237082315. The cubic root of 1421035439 is about 1124.2639963540.

The spelling of 1421035439 in words is "one billion, four hundred twenty-one million, thirty-five thousand, four hundred thirty-nine".