501220193 has 2 divisors, whose sum is σ = 501220194. Its totient is φ = 501220192.

The previous prime is 501220147. The next prime is 501220199. The reversal of 501220193 is 391022105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 327718609 + 173501584 = 18103^2 + 13172^2 .

It is a cyclic number.

It is not a de Polignac number, because 501220193 - 2⁸ = 501219937 is a prime.

It is not a weakly prime, because it can be changed into another prime (501220199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250610096 + 250610097.

It is an arithmetic number, because the mean of its divisors is an integer number (250610097).

Almost surely, 2^501220193 is an apocalyptic number.

It is an amenable number.

501220193 is a deficient number, since it is larger than the sum of its proper divisors (1).

501220193 is an equidigital number, since it uses as much as digits as its factorization.

501220193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 501220193 is about 22387.9474941317. The cubic root of 501220193 is about 794.3456467044.

Adding to 501220193 its reverse (391022105), we get a palindrome (892242298).

The spelling of 501220193 in words is "five hundred one million, two hundred twenty thousand, one hundred ninety-three".