252143743 has 2 divisors, whose sum is σ = 252143744. Its totient is φ = 252143742.

The previous prime is 252143729. The next prime is 252143783. The reversal of 252143743 is 347341252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252143743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252143783) 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, 126071871 + 126071872.

It is an arithmetic number, because the mean of its divisors is an integer number (126071872).

Almost surely, 2^252143743 is an apocalyptic number.

252143743 is a deficient number, since it is larger than the sum of its proper divisors (1).

252143743 is an equidigital number, since it uses as much as digits as its factorization.

252143743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 252143743 is about 15879.0346998802. The cubic root of 252143743 is about 631.7560338267.

Adding to 252143743 its reverse (347341252), we get a palindrome (599484995).

It can be divided in two parts, 2521 and 43743, that added together give a palindrome (46264).

The spelling of 252143743 in words is "two hundred fifty-two million, one hundred forty-three thousand, seven hundred forty-three".