134404163 has 2 divisors, whose sum is σ = 134404164. Its totient is φ = 134404162.

The previous prime is 134404129. The next prime is 134404177. The reversal of 134404163 is 361404431.

It is a strong prime.

It is an emirp because it is prime and its reverse (361404431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134404163 is a prime.

It is not a weakly prime, because it can be changed into another prime (134404463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67202081 + 67202082.

It is an arithmetic number, because the mean of its divisors is an integer number (67202082).

Almost surely, 2^134404163 is an apocalyptic number.

134404163 is a deficient number, since it is larger than the sum of its proper divisors (1).

134404163 is an equidigital number, since it uses as much as digits as its factorization.

134404163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 134404163 is about 11593.2809419939. The cubic root of 134404163 is about 512.2369546815.

Adding to 134404163 its reverse (361404431), we get a palindrome (495808594).

The spelling of 134404163 in words is "one hundred thirty-four million, four hundred four thousand, one hundred sixty-three".