505042143 has 16 divisors (see below), whose sum is σ = 680874336. Its totient is φ = 332971520.

The previous prime is 505042129. The next prime is 505042147. The reversal of 505042143 is 341240505.

It is a cyclic number.

It is not a de Polignac number, because 505042143 - 2⁶ = 505042079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505042147) 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 in 15 ways as a sum of consecutive naturals, for example, 113305 + ... + 117677.

It is an arithmetic number, because the mean of its divisors is an integer number (42554646).

Almost surely, 2^505042143 is an apocalyptic number.

505042143 is a deficient number, since it is larger than the sum of its proper divisors (175832193).

505042143 is a wasteful number, since it uses less digits than its factorization.

505042143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 505042143 is about 22473.1427041257. The cubic root of 505042143 is about 796.3595754097.

Adding to 505042143 its reverse (341240505), we get a palindrome (846282648).

The spelling of 505042143 in words is "five hundred five million, forty-two thousand, one hundred forty-three".