134189191 has 8 divisors (see below), whose sum is σ = 141873200. Its totient is φ = 126567360.

The previous prime is 134189189. The next prime is 134189201. The reversal of 134189191 is 191981431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134189191 - 2¹ = 134189189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134189191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134189101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11070 + ... + 19771.

It is an arithmetic number, because the mean of its divisors is an integer number (17734150).

Almost surely, 2^134189191 is an apocalyptic number.

134189191 is a deficient number, since it is larger than the sum of its proper divisors (7684009).

134189191 is a wasteful number, since it uses less digits than its factorization.

134189191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31089.

The product of its digits is 7776, while the sum is 37.

The square root of 134189191 is about 11584.0058270013. The cubic root of 134189191 is about 511.9637107560.

The spelling of 134189191 in words is "one hundred thirty-four million, one hundred eighty-nine thousand, one hundred ninety-one".