134191679 has 2 divisors, whose sum is σ = 134191680. Its totient is φ = 134191678.

The previous prime is 134191667. The next prime is 134191697. The reversal of 134191679 is 976191431.

Together with next prime (134191697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (976191431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134191679 - 2⁴ = 134191663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134191639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67095839 + 67095840.

It is an arithmetic number, because the mean of its divisors is an integer number (67095840).

Almost surely, 2^134191679 is an apocalyptic number.

134191679 is a deficient number, since it is larger than the sum of its proper divisors (1).

134191679 is an equidigital number, since it uses as much as digits as its factorization.

134191679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 41.

The square root of 134191679 is about 11584.1132159523. The cubic root of 134191679 is about 511.9668748406.

The spelling of 134191679 in words is "one hundred thirty-four million, one hundred ninety-one thousand, six hundred seventy-nine".