134168393 has 2 divisors, whose sum is σ = 134168394. Its totient is φ = 134168392.

The previous prime is 134168383. The next prime is 134168399. The reversal of 134168393 is 393861431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120714169 + 13454224 = 10987^2 + 3668^2 .

It is a cyclic number.

It is not a de Polignac number, because 134168393 - 2⁸ = 134168137 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (134168399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67084196 + 67084197.

It is an arithmetic number, because the mean of its divisors is an integer number (67084197).

Almost surely, 2^134168393 is an apocalyptic number.

It is an amenable number.

134168393 is a deficient number, since it is larger than the sum of its proper divisors (1).

134168393 is an equidigital number, since it uses as much as digits as its factorization.

134168393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 134168393 is about 11583.1080889371. The cubic root of 134168393 is about 511.9372596156.

The spelling of 134168393 in words is "one hundred thirty-four million, one hundred sixty-eight thousand, three hundred ninety-three".