1252213241 has 2 divisors, whose sum is σ = 1252213242. Its totient is φ = 1252213240.

The previous prime is 1252213201. The next prime is 1252213247. The reversal of 1252213241 is 1423122521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 877403641 + 374809600 = 29621^2 + 19360^2 .

It is an emirp because it is prime and its reverse (1423122521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252213241 - 2¹⁰ = 1252212217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252213247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626106620 + 626106621.

It is an arithmetic number, because the mean of its divisors is an integer number (626106621).

Almost surely, 2^1252213241 is an apocalyptic number.

It is an amenable number.

1252213241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252213241 is an equidigital number, since it uses as much as digits as its factorization.

1252213241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 1252213241 is about 35386.6251711010. The cubic root of 1252213241 is about 1077.8527412457.

Adding to 1252213241 its reverse (1423122521), we get a palindrome (2675335762).

The spelling of 1252213241 in words is "one billion, two hundred fifty-two million, two hundred thirteen thousand, two hundred forty-one".