134191 has 2 divisors, whose sum is σ = 134192. Its totient is φ = 134190.

The previous prime is 134177. The next prime is 134207. The reversal of 134191 is 191431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134191 - 2¹⁷ = 3119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67095 + 67096.

It is an arithmetic number, because the mean of its divisors is an integer number (67096).

2¹³⁴¹⁹¹ is an apocalyptic number.

134191 is a deficient number, since it is larger than the sum of its proper divisors (1).

134191 is an equidigital number, since it uses as much as digits as its factorization.

134191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 19.

The square root of 134191 is about 366.3208975748. The cubic root of 134191 is about 51.1966011334.

It can be divided in two parts, 134 and 191, that added together give a triangular number (325 = T₂₅).

The spelling of 134191 in words is "one hundred thirty-four thousand, one hundred ninety-one".