1252218973 has 2 divisors, whose sum is σ = 1252218974. Its totient is φ = 1252218972.

The previous prime is 1252218931. The next prime is 1252218983. The reversal of 1252218973 is 3798122521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1202910489 + 49308484 = 34683^2 + 7022^2 .

It is an emirp because it is prime and its reverse (3798122521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252218973 - 2²⁹ = 715348061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252218983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626109486 + 626109487.

It is an arithmetic number, because the mean of its divisors is an integer number (626109487).

Almost surely, 2^1252218973 is an apocalyptic number.

It is an amenable number.

1252218973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252218973 is an equidigital number, since it uses as much as digits as its factorization.

1252218973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 40.

The square root of 1252218973 is about 35386.7061620604. The cubic root of 1252218973 is about 1077.8543858651.

The spelling of 1252218973 in words is "one billion, two hundred fifty-two million, two hundred eighteen thousand, nine hundred seventy-three".