505143422 has 8 divisors (see below), whose sum is σ = 865960176. Its totient is φ = 216490032.

The previous prime is 505143413. The next prime is 505143433. The reversal of 505143422 is 224341505.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 505143391 and 505143400.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18040823 + ... + 18040850.

It is an arithmetic number, because the mean of its divisors is an integer number (108245022).

Almost surely, 2^505143422 is an apocalyptic number.

505143422 is a deficient number, since it is larger than the sum of its proper divisors (360816754).

505143422 is a wasteful number, since it uses less digits than its factorization.

505143422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36081682.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 505143422 is about 22475.3959253224. The cubic root of 505143422 is about 796.4128047040.

Adding to 505143422 its reverse (224341505), we get a palindrome (729484927).

The spelling of 505143422 in words is "five hundred five million, one hundred forty-three thousand, four hundred twenty-two".