1317880229 has 2 divisors, whose sum is σ = 1317880230. Its totient is φ = 1317880228.

The previous prime is 1317880217. The next prime is 1317880231. The reversal of 1317880229 is 9220887131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 905709025 + 412171204 = 30095^2 + 20302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1317880229 is a prime.

Together with 1317880231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1317880259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658940114 + 658940115.

It is an arithmetic number, because the mean of its divisors is an integer number (658940115).

Almost surely, 2^1317880229 is an apocalyptic number.

It is an amenable number.

1317880229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317880229 is an equidigital number, since it uses as much as digits as its factorization.

1317880229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1317880229 is about 36302.6201395987. The cubic root of 1317880229 is about 1096.3737972005.

The spelling of 1317880229 in words is "one billion, three hundred seventeen million, eight hundred eighty thousand, two hundred twenty-nine".