252871429 has 2 divisors, whose sum is σ = 252871430. Its totient is φ = 252871428.

The previous prime is 252871397. The next prime is 252871471. The reversal of 252871429 is 924178252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241802500 + 11068929 = 15550^2 + 3327^2 .

It is a cyclic number.

It is not a de Polignac number, because 252871429 - 2⁵ = 252871397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252871391 and 252871400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252871529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126435714 + 126435715.

It is an arithmetic number, because the mean of its divisors is an integer number (126435715).

Almost surely, 2^252871429 is an apocalyptic number.

It is an amenable number.

252871429 is a deficient number, since it is larger than the sum of its proper divisors (1).

252871429 is an equidigital number, since it uses as much as digits as its factorization.

252871429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 252871429 is about 15901.9316122287. The cubic root of 252871429 is about 632.3631987099.

The spelling of 252871429 in words is "two hundred fifty-two million, eight hundred seventy-one thousand, four hundred twenty-nine".