503134221 has 8 divisors (see below), whose sum is σ = 671055840. Its totient is φ = 335317712.

The previous prime is 503134217. The next prime is 503134237. The reversal of 503134221 is 122431305.

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

It is a cyclic number.

It is not a de Polignac number, because 503134221 - 2² = 503134217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503134211) 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 7 ways as a sum of consecutive naturals, for example, 14331 + ... + 34808.

It is an arithmetic number, because the mean of its divisors is an integer number (83881980).

Almost surely, 2^503134221 is an apocalyptic number.

It is an amenable number.

503134221 is a deficient number, since it is larger than the sum of its proper divisors (167921619).

503134221 is a wasteful number, since it uses less digits than its factorization.

503134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52555.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 503134221 is about 22430.6536017121. The cubic root of 503134221 is about 795.3554946651.

Adding to 503134221 its reverse (122431305), we get a palindrome (625565526).

The spelling of 503134221 in words is "five hundred three million, one hundred thirty-four thousand, two hundred twenty-one".