134330561 has 2 divisors, whose sum is σ = 134330562. Its totient is φ = 134330560.

The previous prime is 134330543. The next prime is 134330569. The reversal of 134330561 is 165033431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134212225 + 118336 = 11585^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 134330561 - 2¹⁴ = 134314177 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134330561.

It is not a weakly prime, because it can be changed into another prime (134330569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67165280 + 67165281.

It is an arithmetic number, because the mean of its divisors is an integer number (67165281).

Almost surely, 2^134330561 is an apocalyptic number.

It is an amenable number.

134330561 is a deficient number, since it is larger than the sum of its proper divisors (1).

134330561 is an equidigital number, since it uses as much as digits as its factorization.

134330561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 134330561 is about 11590.1061686250. The cubic root of 134330561 is about 512.1434343926.

Adding to 134330561 its reverse (165033431), we get a palindrome (299363992).

The spelling of 134330561 in words is "one hundred thirty-four million, three hundred thirty thousand, five hundred sixty-one".