1306559139 has 8 divisors (see below), whose sum is σ = 1798275072. Its totient is φ = 842941320.

The previous prime is 1306559083. The next prime is 1306559143. The reversal of 1306559139 is 9319556031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1306559139 - 2¹⁶ = 1306493603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1306559139.

It is not an unprimeable number, because it can be changed into a prime (1306559239) 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 in 7 ways as a sum of consecutive naturals, for example, 7024419 + ... + 7024604.

It is an arithmetic number, because the mean of its divisors is an integer number (224784384).

Almost surely, 2^1306559139 is an apocalyptic number.

1306559139 is a deficient number, since it is larger than the sum of its proper divisors (491715933).

1306559139 is a wasteful number, since it uses less digits than its factorization.

1306559139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14049057.

The product of its (nonzero) digits is 109350, while the sum is 42.

The square root of 1306559139 is about 36146.3572023517. The cubic root of 1306559139 is about 1093.2253424739.

The spelling of 1306559139 in words is "one billion, three hundred six million, five hundred fifty-nine thousand, one hundred thirty-nine".