1253424217 has 2 divisors, whose sum is σ = 1253424218. Its totient is φ = 1253424216.

The previous prime is 1253424187. The next prime is 1253424223. The reversal of 1253424217 is 7124243521.

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., 663371536 + 590052681 = 25756^2 + 24291^2 .

It is a cyclic number.

It is not a de Polignac number, because 1253424217 - 2¹¹ = 1253422169 is a prime.

It is not a weakly prime, because it can be changed into another prime (1253424017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626712108 + 626712109.

It is an arithmetic number, because the mean of its divisors is an integer number (626712109).

Almost surely, 2^1253424217 is an apocalyptic number.

It is an amenable number.

1253424217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253424217 is an equidigital number, since it uses as much as digits as its factorization.

1253424217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 31.

The square root of 1253424217 is about 35403.7316818439. The cubic root of 1253424217 is about 1078.2000817859.

Adding to 1253424217 its reverse (7124243521), we get a palindrome (8377667738).

The spelling of 1253424217 in words is "one billion, two hundred fifty-three million, four hundred twenty-four thousand, two hundred seventeen".