1317465221 has 8 divisors (see below), whose sum is σ = 1346157600. Its totient is φ = 1288985040.

The previous prime is 1317465217. The next prime is 1317465223. The reversal of 1317465221 is 1225647131.

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 1317465221 - 2² = 1317465217 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 (1317465223) 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, 40466 + ... + 65363.

It is an arithmetic number, because the mean of its divisors is an integer number (168269700).

Almost surely, 2^1317465221 is an apocalyptic number.

It is an amenable number.

1317465221 is a deficient number, since it is larger than the sum of its proper divisors (28692379).

1317465221 is a wasteful number, since it uses less digits than its factorization.

1317465221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106099.

The product of its digits is 10080, while the sum is 32.

The square root of 1317465221 is about 36296.9037384733. The cubic root of 1317465221 is about 1096.2587003310.

The spelling of 1317465221 in words is "one billion, three hundred seventeen million, four hundred sixty-five thousand, two hundred twenty-one".