1373065139 has 2 divisors, whose sum is σ = 1373065140. Its totient is φ = 1373065138.

The previous prime is 1373065081. The next prime is 1373065273. The reversal of 1373065139 is 9315603731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1373065139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1373065439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686532569 + 686532570.

It is an arithmetic number, because the mean of its divisors is an integer number (686532570).

Almost surely, 2^1373065139 is an apocalyptic number.

1373065139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373065139 is an equidigital number, since it uses as much as digits as its factorization.

1373065139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 38.

The square root of 1373065139 is about 37054.8935904558. The cubic root of 1373065139 is about 1111.4682134885.

The spelling of 1373065139 in words is "one billion, three hundred seventy-three million, sixty-five thousand, one hundred thirty-nine".