1251224063 has 2 divisors, whose sum is σ = 1251224064. Its totient is φ = 1251224062.

The previous prime is 1251224059. The next prime is 1251224071. The reversal of 1251224063 is 3604221521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3604221521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1251224063 - 2² = 1251224059 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1251224003) 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, 625612031 + 625612032.

It is an arithmetic number, because the mean of its divisors is an integer number (625612032).

Almost surely, 2^1251224063 is an apocalyptic number.

1251224063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1251224063 is an equidigital number, since it uses as much as digits as its factorization.

1251224063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1251224063 is about 35372.6456884412. The cubic root of 1251224063 is about 1077.5688521417.

Adding to 1251224063 its reverse (3604221521), we get a palindrome (4855445584).

The spelling of 1251224063 in words is "one billion, two hundred fifty-one million, two hundred twenty-four thousand, sixty-three".