134171839 has 2 divisors, whose sum is σ = 134171840. Its totient is φ = 134171838.

The previous prime is 134171833. The next prime is 134171899. The reversal of 134171839 is 938171431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134171839 - 2¹³ = 134163647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134171798 and 134171807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134171833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67085919 + 67085920.

It is an arithmetic number, because the mean of its divisors is an integer number (67085920).

Almost surely, 2^134171839 is an apocalyptic number.

134171839 is a deficient number, since it is larger than the sum of its proper divisors (1).

134171839 is an equidigital number, since it uses as much as digits as its factorization.

134171839 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 134171839 is about 11583.2568390760. The cubic root of 134171839 is about 511.9416424677.

The spelling of 134171839 in words is "one hundred thirty-four million, one hundred seventy-one thousand, eight hundred thirty-nine".