1317472741 has 4 divisors (see below), whose sum is σ = 1418816812. Its totient is φ = 1216128672.

The previous prime is 1317472679. The next prime is 1317472747. The reversal of 1317472741 is 1472747131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1472747131 = 12841 ⋅114691.

It can be written as a sum of positive squares in 2 ways, for example, as 304642116 + 1012830625 = 17454^2 + 31825^2 .

It is a cyclic number.

It is not a de Polignac number, because 1317472741 - 2¹³ = 1317464549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1317472741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317472747) 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, 50672016 + ... + 50672041.

It is an arithmetic number, because the mean of its divisors is an integer number (354704203).

Almost surely, 2^1317472741 is an apocalyptic number.

It is an amenable number.

1317472741 is a deficient number, since it is larger than the sum of its proper divisors (101344071).

1317472741 is a wasteful number, since it uses less digits than its factorization.

1317472741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101344070.

The product of its digits is 32928, while the sum is 37.

The square root of 1317472741 is about 36297.0073284286. The cubic root of 1317472741 is about 1096.2607861166.

The spelling of 1317472741 in words is "one billion, three hundred seventeen million, four hundred seventy-two thousand, seven hundred forty-one".