503420189 has 2 divisors, whose sum is σ = 503420190. Its totient is φ = 503420188.

The previous prime is 503420173. The next prime is 503420207. The reversal of 503420189 is 981024305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 500416900 + 3003289 = 22370^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 503420189 - 2⁴ = 503420173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503420119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251710094 + 251710095.

It is an arithmetic number, because the mean of its divisors is an integer number (251710095).

Almost surely, 2^503420189 is an apocalyptic number.

It is an amenable number.

503420189 is a deficient number, since it is larger than the sum of its proper divisors (1).

503420189 is an equidigital number, since it uses as much as digits as its factorization.

503420189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 503420189 is about 22437.0271872189. The cubic root of 503420189 is about 795.5061523709.

The spelling of 503420189 in words is "five hundred three million, four hundred twenty thousand, one hundred eighty-nine".