1316307173 has 4 divisors (see below), whose sum is σ = 1348412268. Its totient is φ = 1284202080.

The previous prime is 1316307163. The next prime is 1316307211. The reversal of 1316307173 is 3717036131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3717036131 = 277 ⋅13418903.

It can be written as a sum of positive squares in 2 ways, for example, as 44528929 + 1271778244 = 6673^2 + 35662^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316307173 - 2¹⁶ = 1316241637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316307133) 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, 16052486 + ... + 16052567.

It is an arithmetic number, because the mean of its divisors is an integer number (337103067).

Almost surely, 2^1316307173 is an apocalyptic number.

It is an amenable number.

1316307173 is a deficient number, since it is larger than the sum of its proper divisors (32105095).

1316307173 is an equidigital number, since it uses as much as digits as its factorization.

1316307173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32105094.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 1316307173 is about 36280.9477963297. The cubic root of 1316307173 is about 1095.9374034636.

The spelling of 1316307173 in words is "one billion, three hundred sixteen million, three hundred seven thousand, one hundred seventy-three".