134665441 has 2 divisors, whose sum is σ = 134665442. Its totient is φ = 134665440.

The previous prime is 134665439. The next prime is 134665451. The reversal of 134665441 is 144566431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102414400 + 32251041 = 10120^2 + 5679^2 .

It is a cyclic number.

It is not a de Polignac number, because 134665441 - 2¹ = 134665439 is a prime.

Together with 134665439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 134665397 and 134665406.

It is not a weakly prime, because it can be changed into another prime (134665411) 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, 67332720 + 67332721.

It is an arithmetic number, because the mean of its divisors is an integer number (67332721).

Almost surely, 2^134665441 is an apocalyptic number.

It is an amenable number.

134665441 is a deficient number, since it is larger than the sum of its proper divisors (1).

134665441 is an equidigital number, since it uses as much as digits as its factorization.

134665441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 134665441 is about 11604.5439807000. The cubic root of 134665441 is about 512.5686646845.

The spelling of 134665441 in words is "one hundred thirty-four million, six hundred sixty-five thousand, four hundred forty-one".