134324221 has 2 divisors, whose sum is σ = 134324222. Its totient is φ = 134324220.

The previous prime is 134324219. The next prime is 134324227. The reversal of 134324221 is 122423431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92256025 + 42068196 = 9605^2 + 6486^2 .

It is a cyclic number.

It is not a de Polignac number, because 134324221 - 2¹ = 134324219 is a prime.

Together with 134324219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 134324192 and 134324201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134324227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67162110 + 67162111.

It is an arithmetic number, because the mean of its divisors is an integer number (67162111).

Almost surely, 2^134324221 is an apocalyptic number.

It is an amenable number.

134324221 is a deficient number, since it is larger than the sum of its proper divisors (1).

134324221 is an equidigital number, since it uses as much as digits as its factorization.

134324221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 134324221 is about 11589.8326562552. The cubic root of 134324221 is about 512.1353770540.

Adding to 134324221 its reverse (122423431), we get a palindrome (256747652).

It can be divided in two parts, 13 and 4324221, that added together give a palindrome (4324234).

The spelling of 134324221 in words is "one hundred thirty-four million, three hundred twenty-four thousand, two hundred twenty-one".