421413241 has 2 divisors, whose sum is σ = 421413242. Its totient is φ = 421413240.

The previous prime is 421413203. The next prime is 421413247. The reversal of 421413241 is 142314124.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216207616 + 205205625 = 14704^2 + 14325^2 .

It is a cyclic number.

It is not a de Polignac number, because 421413241 - 2¹⁵ = 421380473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (421413247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210706620 + 210706621.

It is an arithmetic number, because the mean of its divisors is an integer number (210706621).

Almost surely, 2^421413241 is an apocalyptic number.

It is an amenable number.

421413241 is a deficient number, since it is larger than the sum of its proper divisors (1).

421413241 is an equidigital number, since it uses as much as digits as its factorization.

421413241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 768, while the sum is 22.

The square root of 421413241 is about 20528.3521257796. The cubic root of 421413241 is about 749.7262651415.

Adding to 421413241 its reverse (142314124), we get a palindrome (563727365).

The spelling of 421413241 in words is "four hundred twenty-one million, four hundred thirteen thousand, two hundred forty-one".