266212313 has 2 divisors, whose sum is σ = 266212314. Its totient is φ = 266212312.

The previous prime is 266212241. The next prime is 266212321. The reversal of 266212313 is 313212662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255136729 + 11075584 = 15973^2 + 3328^2 .

It is a cyclic number.

It is not a de Polignac number, because 266212313 - 2¹⁰ = 266211289 is a prime.

It is equal to p_14516522 and since 266212313 and 14516522 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (266212013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133106156 + 133106157.

It is an arithmetic number, because the mean of its divisors is an integer number (133106157).

Almost surely, 2^266212313 is an apocalyptic number.

It is an amenable number.

266212313 is a deficient number, since it is larger than the sum of its proper divisors (1).

266212313 is an equidigital number, since it uses as much as digits as its factorization.

266212313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 26.

The square root of 266212313 is about 16316.0140046520. The cubic root of 266212313 is about 643.2938205543.

Adding to 266212313 its reverse (313212662), we get a palindrome (579424975).

The spelling of 266212313 in words is "two hundred sixty-six million, two hundred twelve thousand, three hundred thirteen".