1300420139 has 2 divisors, whose sum is σ = 1300420140. Its totient is φ = 1300420138.

The previous prime is 1300420129. The next prime is 1300420153. The reversal of 1300420139 is 9310240031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1300420139 - 2⁴ = 1300420123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1300420109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650210069 + 650210070.

It is an arithmetic number, because the mean of its divisors is an integer number (650210070).

Almost surely, 2^1300420139 is an apocalyptic number.

1300420139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300420139 is an equidigital number, since it uses as much as digits as its factorization.

1300420139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1300420139 is about 36061.3385636196. The cubic root of 1300420139 is about 1091.5104439140.

The spelling of 1300420139 in words is "one billion, three hundred million, four hundred twenty thousand, one hundred thirty-nine".