1421159039 has 2 divisors, whose sum is σ = 1421159040. Its totient is φ = 1421159038.

The previous prime is 1421158961. The next prime is 1421159063. The reversal of 1421159039 is 9309511241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421159039 - 2¹⁶ = 1421093503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421159099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710579519 + 710579520.

It is an arithmetic number, because the mean of its divisors is an integer number (710579520).

Almost surely, 2^1421159039 is an apocalyptic number.

1421159039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421159039 is an equidigital number, since it uses as much as digits as its factorization.

1421159039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 1421159039 is about 37698.2630766989. The cubic root of 1421159039 is about 1124.2965911314.

The spelling of 1421159039 in words is "one billion, four hundred twenty-one million, one hundred fifty-nine thousand, thirty-nine".