313523513 has 2 divisors, whose sum is σ = 313523514. Its totient is φ = 313523512.

The previous prime is 313523501. The next prime is 313523519. The reversal of 313523513 is 315325313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280495504 + 33028009 = 16748^2 + 5747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313523513 is a prime.

It is a super-2 number, since 2×313523513² = 196593986407722338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313523519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156761756 + 156761757.

It is an arithmetic number, because the mean of its divisors is an integer number (156761757).

Almost surely, 2^313523513 is an apocalyptic number.

It is an amenable number.

313523513 is a deficient number, since it is larger than the sum of its proper divisors (1).

313523513 is an equidigital number, since it uses as much as digits as its factorization.

313523513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 26.

The square root of 313523513 is about 17706.5951837162. The cubic root of 313523513 is about 679.3444612387.

Adding to 313523513 its reverse (315325313), we get a palindrome (628848826).

The spelling of 313523513 in words is "three hundred thirteen million, five hundred twenty-three thousand, five hundred thirteen".