1317743047 has 8 divisors (see below), whose sum is σ = 1331866800. Its totient is φ = 1303694784.

The previous prime is 1317743039. The next prime is 1317743057. The reversal of 1317743047 is 7403477131.

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 1317743047 - 2³ = 1317743039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1317742997 and 1317743015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317743057) 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, 16579 + ... + 53947.

It is an arithmetic number, because the mean of its divisors is an integer number (166483350).

Almost surely, 2^1317743047 is an apocalyptic number.

1317743047 is a deficient number, since it is larger than the sum of its proper divisors (14123753).

1317743047 is a wasteful number, since it uses less digits than its factorization.

1317743047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37745.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 1317743047 is about 36300.7306675775. The cubic root of 1317743047 is about 1096.3357542975.

The spelling of 1317743047 in words is "one billion, three hundred seventeen million, seven hundred forty-three thousand, forty-seven".