1252003243 has 2 divisors, whose sum is σ = 1252003244. Its totient is φ = 1252003242.

The previous prime is 1252003241. The next prime is 1252003253. The reversal of 1252003243 is 3423002521.

It is a weak prime.

It is an emirp because it is prime and its reverse (3423002521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252003243 - 2¹ = 1252003241 is a prime.

Together with 1252003241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1252003241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626001621 + 626001622.

It is an arithmetic number, because the mean of its divisors is an integer number (626001622).

Almost surely, 2^1252003243 is an apocalyptic number.

1252003243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252003243 is an equidigital number, since it uses as much as digits as its factorization.

1252003243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1252003243 is about 35383.6578521780. The cubic root of 1252003243 is about 1077.7924853813.

Adding to 1252003243 its reverse (3423002521), we get a palindrome (4675005764).

The spelling of 1252003243 in words is "one billion, two hundred fifty-two million, three thousand, two hundred forty-three".