1306671617 has 8 divisors (see below), whose sum is σ = 1322092200. Its totient is φ = 1291313664.

The previous prime is 1306671563. The next prime is 1306671649. The reversal of 1306671617 is 7161766031.

It can be written as a sum of positive squares in 4 ways, for example, as 5193841 + 1301477776 = 2279^2 + 36076^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1306671617 - 2⁸ = 1306671361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1306671677) 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, 26993 + ... + 57809.

It is an arithmetic number, because the mean of its divisors is an integer number (165261525).

Almost surely, 2^1306671617 is an apocalyptic number.

It is an amenable number.

1306671617 is a deficient number, since it is larger than the sum of its proper divisors (15420583).

1306671617 is a wasteful number, since it uses less digits than its factorization.

1306671617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31315.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 1306671617 is about 36147.9130379611. The cubic root of 1306671617 is about 1093.2567124717.

The spelling of 1306671617 in words is "one billion, three hundred six million, six hundred seventy-one thousand, six hundred seventeen".