413505221 has 2 divisors, whose sum is σ = 413505222. Its totient is φ = 413505220.

The previous prime is 413505199. The next prime is 413505251. The reversal of 413505221 is 122505314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 224580196 + 188925025 = 14986^2 + 13745^2 .

It is a cyclic number.

It is not a de Polignac number, because 413505221 - 2²² = 409310917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (413505251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206752610 + 206752611.

It is an arithmetic number, because the mean of its divisors is an integer number (206752611).

Almost surely, 2^413505221 is an apocalyptic number.

It is an amenable number.

413505221 is a deficient number, since it is larger than the sum of its proper divisors (1).

413505221 is an equidigital number, since it uses as much as digits as its factorization.

413505221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 413505221 is about 20334.8277838786. The cubic root of 413505221 is about 745.0069641858.

The spelling of 413505221 in words is "four hundred thirteen million, five hundred five thousand, two hundred twenty-one".