1317047027 has 4 divisors (see below), whose sum is σ = 1318584696. Its totient is φ = 1315509360.

The previous prime is 1317046937. The next prime is 1317047041. The reversal of 1317047027 is 7207407131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1317047027 - 2⁸ = 1317046771 is a prime.

It is a super-2 number, since 2×1317047027² = 3469225742659077458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1317046984 and 1317047002.

It is not an unprimeable number, because it can be changed into a prime (1317047087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767549 + ... + 769262.

It is an arithmetic number, because the mean of its divisors is an integer number (329646174).

Almost surely, 2^1317047027 is an apocalyptic number.

1317047027 is a deficient number, since it is larger than the sum of its proper divisors (1537669).

1317047027 is an equidigital number, since it uses as much as digits as its factorization.

1317047027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537668.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 1317047027 is about 36291.1425419482. The cubic root of 1317047027 is about 1096.1426954150.

The spelling of 1317047027 in words is "one billion, three hundred seventeen million, forty-seven thousand, twenty-seven".