1306368917 has 4 divisors (see below), whose sum is σ = 1492993056. Its totient is φ = 1119744780.

The previous prime is 1306368913. The next prime is 1306368929. The reversal of 1306368917 is 7198636031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7198636031 = 227 ⋅31712053.

It is not a de Polignac number, because 1306368917 - 2² = 1306368913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306368911) 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 in 3 ways as a sum of consecutive naturals, for example, 93312059 + ... + 93312072.

It is an arithmetic number, because the mean of its divisors is an integer number (373248264).

Almost surely, 2^1306368917 is an apocalyptic number.

It is an amenable number.

1306368917 is a deficient number, since it is larger than the sum of its proper divisors (186624139).

1306368917 is an equidigital number, since it uses as much as digits as its factorization.

1306368917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186624138.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 1306368917 is about 36143.7258317401. The cubic root of 1306368917 is about 1093.1722856578.

The spelling of 1306368917 in words is "one billion, three hundred six million, three hundred sixty-eight thousand, nine hundred seventeen".