1314530813 has 2 divisors, whose sum is σ = 1314530814. Its totient is φ = 1314530812.

The previous prime is 1314530773. The next prime is 1314530837. The reversal of 1314530813 is 3180354131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1078662649 + 235868164 = 32843^2 + 15358^2 .

It is an emirp because it is prime and its reverse (3180354131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1314530813 is a prime.

It is a super-3 number, since 3×1314530813³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1314530863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657265406 + 657265407.

It is an arithmetic number, because the mean of its divisors is an integer number (657265407).

Almost surely, 2^1314530813 is an apocalyptic number.

It is an amenable number.

1314530813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314530813 is an equidigital number, since it uses as much as digits as its factorization.

1314530813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1314530813 is about 36256.4589142404. The cubic root of 1314530813 is about 1095.4441913950. Note that the first 3 decimals are identical.

Adding to 1314530813 its reverse (3180354131), we get a palindrome (4494884944).

The spelling of 1314530813 in words is "one billion, three hundred fourteen million, five hundred thirty thousand, eight hundred thirteen".