263316413 has 2 divisors, whose sum is σ = 263316414. Its totient is φ = 263316412.

The previous prime is 263316409. The next prime is 263316437. The reversal of 263316413 is 314613362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227949604 + 35366809 = 15098^2 + 5947^2 .

It is a cyclic number.

It is not a de Polignac number, because 263316413 - 2² = 263316409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263316113) 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, 131658206 + 131658207.

It is an arithmetic number, because the mean of its divisors is an integer number (131658207).

Almost surely, 2^263316413 is an apocalyptic number.

It is an amenable number.

263316413 is a deficient number, since it is larger than the sum of its proper divisors (1).

263316413 is an equidigital number, since it uses as much as digits as its factorization.

263316413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

The square root of 263316413 is about 16227.0272385302. The cubic root of 263316413 is about 640.9526932750.

Adding to 263316413 its reverse (314613362), we get a palindrome (577929775).

The spelling of 263316413 in words is "two hundred sixty-three million, three hundred sixteen thousand, four hundred thirteen".