134399 has 2 divisors, whose sum is σ = 134400. Its totient is φ = 134398.

The previous prime is 134371. The next prime is 134401. The reversal of 134399 is 993431.

It is a strong prime.

It is an emirp because it is prime and its reverse (993431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134399 - 2¹² = 130303 is a prime.

Together with 134401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134339) 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, 67199 + 67200.

It is an arithmetic number, because the mean of its divisors is an integer number (67200).

2¹³⁴³⁹⁹ is an apocalyptic number.

134399 is a deficient number, since it is larger than the sum of its proper divisors (1).

134399 is an equidigital number, since it uses as much as digits as its factorization.

134399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 29.

The square root of 134399 is about 366.6046917321. The cubic root of 134399 is about 51.2230395576.

The spelling of 134399 in words is "one hundred thirty-four thousand, three hundred ninety-nine".