1420332139 has 2 divisors, whose sum is σ = 1420332140. Its totient is φ = 1420332138.

The previous prime is 1420332119. The next prime is 1420332157. The reversal of 1420332139 is 9312330241.

It is a strong prime.

It is an emirp because it is prime and its reverse (9312330241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420332139 - 2¹⁷ = 1420201067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420332119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710166069 + 710166070.

It is an arithmetic number, because the mean of its divisors is an integer number (710166070).

Almost surely, 2^1420332139 is an apocalyptic number.

1420332139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420332139 is an equidigital number, since it uses as much as digits as its factorization.

1420332139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1420332139 is about 37687.2941321077. The cubic root of 1420332139 is about 1124.0784918675.

The spelling of 1420332139 in words is "one billion, four hundred twenty million, three hundred thirty-two thousand, one hundred thirty-nine".