1300139 has 2 divisors, whose sum is σ = 1300140. Its totient is φ = 1300138.

The previous prime is 1300133. The next prime is 1300141. The reversal of 1300139 is 9310031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1300139 - 2¹⁶ = 1234603 is a prime.

It is a super-2 number, since 2×1300139² = 3380722838642, which contains 22 as substring.

Together with 1300141, 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 (1300133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650069 + 650070.

It is an arithmetic number, because the mean of its divisors is an integer number (650070).

2^1300139 is an apocalyptic number.

1300139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1300139 is an equidigital number, since it uses as much as digits as its factorization.

1300139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1300139 is about 1140.2363790022. The cubic root of 1300139 is about 109.1431780037.

The spelling of 1300139 in words is "one million, three hundred thousand, one hundred thirty-nine".