1317341278 has 32 divisors (see below), whose sum is σ = 2183965920. Its totient is φ = 595900800.

The previous prime is 1317341251. The next prime is 1317341281. The reversal of 1317341278 is 8721437131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 608518 + ... + 610678.

It is an arithmetic number, because the mean of its divisors is an integer number (68248935).

Almost surely, 2^1317341278 is an apocalyptic number.

1317341278 is a deficient number, since it is larger than the sum of its proper divisors (866624642).

1317341278 is a wasteful number, since it uses less digits than its factorization.

1317341278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2425 (or 2403 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 1317341278 is about 36295.1963488283. The cubic root of 1317341278 is about 1096.2243217250.

The spelling of 1317341278 in words is "one billion, three hundred seventeen million, three hundred forty-one thousand, two hundred seventy-eight".