252643043 has 2 divisors, whose sum is σ = 252643044. Its totient is φ = 252643042.

The previous prime is 252643021. The next prime is 252643049. The reversal of 252643043 is 340346252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252643043 - 2⁶ = 252642979 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 252642997 and 252643015.

It is not a weakly prime, because it can be changed into another prime (252643049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126321521 + 126321522.

It is an arithmetic number, because the mean of its divisors is an integer number (126321522).

Almost surely, 2^252643043 is an apocalyptic number.

252643043 is a deficient number, since it is larger than the sum of its proper divisors (1).

252643043 is an equidigital number, since it uses as much as digits as its factorization.

252643043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 252643043 is about 15894.7489127699. The cubic root of 252643043 is about 632.1727641171.

Adding to 252643043 its reverse (340346252), we get a palindrome (592989295).

The spelling of 252643043 in words is "two hundred fifty-two million, six hundred forty-three thousand, forty-three".