501430201 has 2 divisors, whose sum is σ = 501430202. Its totient is φ = 501430200.

The previous prime is 501430157. The next prime is 501430229. The reversal of 501430201 is 102034105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454712976 + 46717225 = 21324^2 + 6835^2 .

It is a cyclic number.

It is not a de Polignac number, because 501430201 - 2⁹ = 501429689 is a prime.

It is not a weakly prime, because it can be changed into another prime (501430801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250715100 + 250715101.

It is an arithmetic number, because the mean of its divisors is an integer number (250715101).

Almost surely, 2^501430201 is an apocalyptic number.

It is an amenable number.

501430201 is a deficient number, since it is larger than the sum of its proper divisors (1).

501430201 is an equidigital number, since it uses as much as digits as its factorization.

501430201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 501430201 is about 22392.6372051172. The cubic root of 501430201 is about 794.4565730994.

Adding to 501430201 its reverse (102034105), we get a palindrome (603464306).

The spelling of 501430201 in words is "five hundred one million, four hundred thirty thousand, two hundred one".