252117143 has 2 divisors, whose sum is σ = 252117144. Its totient is φ = 252117142.

The previous prime is 252117119. The next prime is 252117161. The reversal of 252117143 is 341711252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252117143 - 2¹⁰ = 252116119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252117043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126058571 + 126058572.

It is an arithmetic number, because the mean of its divisors is an integer number (126058572).

Almost surely, 2^252117143 is an apocalyptic number.

252117143 is a deficient number, since it is larger than the sum of its proper divisors (1).

252117143 is an equidigital number, since it uses as much as digits as its factorization.

252117143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 252117143 is about 15878.1970953884. The cubic root of 252117143 is about 631.7338172644.

Adding to 252117143 its reverse (341711252), we get a palindrome (593828395).

The spelling of 252117143 in words is "two hundred fifty-two million, one hundred seventeen thousand, one hundred forty-three".