12313229 has 2 divisors, whose sum is σ = 12313230. Its totient is φ = 12313228.

The previous prime is 12313187. The next prime is 12313237. The reversal of 12313229 is 92231321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6916900 + 5396329 = 2630^2 + 2323^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313229 - 2⁸ = 12312973 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12313289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156614 + 6156615.

It is an arithmetic number, because the mean of its divisors is an integer number (6156615).

Almost surely, 2^12313229 is an apocalyptic number.

It is an amenable number.

12313229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313229 is an equidigital number, since it uses as much as digits as its factorization.

12313229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 12313229 is about 3509.0210885659. The cubic root of 12313229 is about 230.9177508697.

The spelling of 12313229 in words is "twelve million, three hundred thirteen thousand, two hundred twenty-nine".