1317651716 has 6 divisors (see below), whose sum is σ = 2305890510. Its totient is φ = 658825856.

The previous prime is 1317651703. The next prime is 1317651719. The reversal of 1317651716 is 6171567131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1303932100 + 13719616 = 36110^2 + 3704^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1317651716.

It is not an unprimeable number, because it can be changed into a prime (1317651719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164706461 + ... + 164706468.

It is an arithmetic number, because the mean of its divisors is an integer number (384315085).

Almost surely, 2^1317651716 is an apocalyptic number.

It is an amenable number.

1317651716 is a deficient number, since it is larger than the sum of its proper divisors (988238794).

1317651716 is a wasteful number, since it uses less digits than its factorization.

1317651716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329412933 (or 329412931 counting only the distinct ones).

The product of its digits is 26460, while the sum is 38.

The square root of 1317651716 is about 36299.4726683460. The cubic root of 1317651716 is about 1096.3104251930.

The spelling of 1317651716 in words is "one billion, three hundred seventeen million, six hundred fifty-one thousand, seven hundred sixteen".