134136839 has 2 divisors, whose sum is σ = 134136840. Its totient is φ = 134136838.

The previous prime is 134136833. The next prime is 134136841. The reversal of 134136839 is 938631431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134136839 - 2²⁴ = 117359623 is a prime.

Together with 134136841, 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 (134136833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67068419 + 67068420.

It is an arithmetic number, because the mean of its divisors is an integer number (67068420).

Almost surely, 2^134136839 is an apocalyptic number.

134136839 is a deficient number, since it is larger than the sum of its proper divisors (1).

134136839 is an equidigital number, since it uses as much as digits as its factorization.

134136839 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 134136839 is about 11581.7459391924. The cubic root of 134136839 is about 511.8971236480.

The spelling of 134136839 in words is "one hundred thirty-four million, one hundred thirty-six thousand, eight hundred thirty-nine".