134813839 has 2 divisors, whose sum is σ = 134813840. Its totient is φ = 134813838.

The previous prime is 134813773. The next prime is 134813851. The reversal of 134813839 is 938318431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134813839 - 2¹⁵ = 134781071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134813869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67406919 + 67406920.

It is an arithmetic number, because the mean of its divisors is an integer number (67406920).

Almost surely, 2^134813839 is an apocalyptic number.

134813839 is a deficient number, since it is larger than the sum of its proper divisors (1).

134813839 is an equidigital number, since it uses as much as digits as its factorization.

134813839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 134813839 is about 11610.9361810321. The cubic root of 134813839 is about 512.7568749161.

The spelling of 134813839 in words is "one hundred thirty-four million, eight hundred thirteen thousand, eight hundred thirty-nine".