413532221 has 2 divisors, whose sum is σ = 413532222. Its totient is φ = 413532220.

The previous prime is 413532167. The next prime is 413532227. The reversal of 413532221 is 122235314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396607225 + 16924996 = 19915^2 + 4114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-413532221 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (413532227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206766110 + 206766111.

It is an arithmetic number, because the mean of its divisors is an integer number (206766111).

Almost surely, 2^413532221 is an apocalyptic number.

It is an amenable number.

413532221 is a deficient number, since it is larger than the sum of its proper divisors (1).

413532221 is an equidigital number, since it uses as much as digits as its factorization.

413532221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 413532221 is about 20335.4916586740. The cubic root of 413532221 is about 745.0231790155.

Adding to 413532221 its reverse (122235314), we get a palindrome (535767535).

The spelling of 413532221 in words is "four hundred thirteen million, five hundred thirty-two thousand, two hundred twenty-one".