1316755481 has 2 divisors, whose sum is σ = 1316755482. Its totient is φ = 1316755480.

The previous prime is 1316755457. The next prime is 1316755487. The reversal of 1316755481 is 1845576131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1291755481 + 25000000 = 35941^2 + 5000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316755481 - 2¹⁰ = 1316754457 is a prime.

It is a super-2 number, since 2×1316755481² = 3467689993487082722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1316755487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658377740 + 658377741.

It is an arithmetic number, because the mean of its divisors is an integer number (658377741).

Almost surely, 2^1316755481 is an apocalyptic number.

It is an amenable number.

1316755481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316755481 is an equidigital number, since it uses as much as digits as its factorization.

1316755481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 41.

The square root of 1316755481 is about 36287.1255543891. The cubic root of 1316755481 is about 1096.0618074904.

The spelling of 1316755481 in words is "one billion, three hundred sixteen million, seven hundred fifty-five thousand, four hundred eighty-one".