1316313352249 has 9 divisors (see below), whose sum is σ = 1531230997071. Its totient is φ = 1128261703800.

The previous prime is 1316313352229. The next prime is 1316313352301. The reversal of 1316313352249 is 9422533136131.

The square root of 1316313352249 is 1147307.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 657651255849 + 658662096400 = 810957^2 + 811580^2 .

It is not a de Polignac number, because 1316313352249 - 2¹⁵ = 1316313319481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1316313352219) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7949199 + ... + 8113099.

Almost surely, 2^{1316313352249} is an apocalyptic number.

1316313352249 is the 1147307-th square number.

1316313352249 is the 573654-th centered octagonal number.

It is an amenable number.

1316313352249 is a deficient number, since it is larger than the sum of its proper divisors (214917644822).

1316313352249 is an frugal number, since it uses more digits than its factorization.

1316313352249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327816 (or 163908 counting only the distinct ones).

The product of its digits is 349920, while the sum is 43.

The spelling of 1316313352249 in words is "one trillion, three hundred sixteen billion, three hundred thirteen million, three hundred fifty-two thousand, two hundred forty-nine".