1225234313 has 2 divisors, whose sum is σ = 1225234314. Its totient is φ = 1225234312.

The previous prime is 1225234289. The next prime is 1225234327. The reversal of 1225234313 is 3134325221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1193840704 + 31393609 = 34552^2 + 5603^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225234313 - 2³⁰ = 151492489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1225231313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612617156 + 612617157.

It is an arithmetic number, because the mean of its divisors is an integer number (612617157).

Almost surely, 2^1225234313 is an apocalyptic number.

It is an amenable number.

1225234313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225234313 is an equidigital number, since it uses as much as digits as its factorization.

1225234313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 1225234313 is about 35003.3471685209. The cubic root of 1225234313 is about 1070.0556971619.

Adding to 1225234313 its reverse (3134325221), we get a palindrome (4359559534).

The spelling of 1225234313 in words is "one billion, two hundred twenty-five million, two hundred thirty-four thousand, three hundred thirteen".