252147443189 has 2 divisors, whose sum is σ = 252147443190. Its totient is φ = 252147443188.

The previous prime is 252147443183. The next prime is 252147443203. The reversal of 252147443189 is 981344741252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223745082289 + 28402360900 = 473017^2 + 168530^2 .

It is a cyclic number.

It is not a de Polignac number, because 252147443189 - 2³⁶ = 183427966453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252147443183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126073721594 + 126073721595.

It is an arithmetic number, because the mean of its divisors is an integer number (126073721595).

Almost surely, 2^252147443189 is an apocalyptic number.

It is an amenable number.

252147443189 is a deficient number, since it is larger than the sum of its proper divisors (1).

252147443189 is an equidigital number, since it uses as much as digits as its factorization.

252147443189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 50.

The spelling of 252147443189 in words is "two hundred fifty-two billion, one hundred forty-seven million, four hundred forty-three thousand, one hundred eighty-nine".