421315241 has 2 divisors, whose sum is σ = 421315242. Its totient is φ = 421315240.

The previous prime is 421315211. The next prime is 421315273. The reversal of 421315241 is 142513124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332880025 + 88435216 = 18245^2 + 9404^2 .

It is a cyclic number.

It is not a de Polignac number, because 421315241 - 2¹⁰ = 421314217 is a prime.

It is not a weakly prime, because it can be changed into another prime (421315211) 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, 210657620 + 210657621.

It is an arithmetic number, because the mean of its divisors is an integer number (210657621).

Almost surely, 2^421315241 is an apocalyptic number.

It is an amenable number.

421315241 is a deficient number, since it is larger than the sum of its proper divisors (1).

421315241 is an equidigital number, since it uses as much as digits as its factorization.

421315241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 421315241 is about 20525.9650443043. The cubic root of 421315241 is about 749.6681441469.

Adding to 421315241 its reverse (142513124), we get a palindrome (563828365).

The spelling of 421315241 in words is "four hundred twenty-one million, three hundred fifteen thousand, two hundred forty-one".