1306533317 has 8 divisors (see below), whose sum is σ = 1431091800. Its totient is φ = 1187275264.

The previous prime is 1306533301. The next prime is 1306533329. The reversal of 1306533317 is 7133356031.

It is a Cunningham number, because it is equal to 36146²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 685078276 + 621455041 = 26174^2 + 24929^2 .

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 1306533317 - 2⁴ = 1306533301 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 (1306533337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1324592 + ... + 1325577.

It is an arithmetic number, because the mean of its divisors is an integer number (178886475).

Almost surely, 2^1306533317 is an apocalyptic number.

1306533317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1306533317 is a deficient number, since it is larger than the sum of its proper divisors (124558483).

1306533317 is a wasteful number, since it uses less digits than its factorization.

1306533317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650215.

The product of its (nonzero) digits is 17010, while the sum is 32.

The square root of 1306533317 is about 36146.0000138328. Note that the first 4 decimals coincide. The cubic root of 1306533317 is about 1093.2181404908.

Adding to 1306533317 its reverse (7133356031), we get a palindrome (8439889348).

The spelling of 1306533317 in words is "one billion, three hundred six million, five hundred thirty-three thousand, three hundred seventeen".