134191697 has 2 divisors, whose sum is σ = 134191698. Its totient is φ = 134191696.

The previous prime is 134191679. The next prime is 134191723. The reversal of 134191697 is 796191431.

Together with previous prime (134191679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89889361 + 44302336 = 9481^2 + 6656^2 .

It is a cyclic number.

It is not a de Polignac number, because 134191697 - 2¹² = 134187601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134191667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67095848 + 67095849.

It is an arithmetic number, because the mean of its divisors is an integer number (67095849).

Almost surely, 2^134191697 is an apocalyptic number.

It is an amenable number.

134191697 is a deficient number, since it is larger than the sum of its proper divisors (1).

134191697 is an equidigital number, since it uses as much as digits as its factorization.

134191697 is an evil number, because the sum of its binary digits is even.

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

The square root of 134191697 is about 11584.1139928784. The cubic root of 134191697 is about 511.9668977317.

The spelling of 134191697 in words is "one hundred thirty-four million, one hundred ninety-one thousand, six hundred ninety-seven".