252943843 has 2 divisors, whose sum is σ = 252943844. Its totient is φ = 252943842.

The previous prime is 252943841. The next prime is 252943853. The reversal of 252943843 is 348349252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252943843 - 2¹ = 252943841 is a prime.

Together with 252943841, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 252943796 and 252943805.

It is not a weakly prime, because it can be changed into another prime (252943841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126471921 + 126471922.

It is an arithmetic number, because the mean of its divisors is an integer number (126471922).

Almost surely, 2^252943843 is an apocalyptic number.

252943843 is a deficient number, since it is larger than the sum of its proper divisors (1).

252943843 is an equidigital number, since it uses as much as digits as its factorization.

252943843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 252943843 is about 15904.2083424482. The cubic root of 252943843 is about 632.4235555724.

The spelling of 252943843 in words is "two hundred fifty-two million, nine hundred forty-three thousand, eight hundred forty-three".