134189771 has 4 divisors (see below), whose sum is σ = 134446872. Its totient is φ = 133932672.

The previous prime is 134189767. The next prime is 134189779. The reversal of 134189771 is 177981431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177981431 = 10039 ⋅17729.

It is a cyclic number.

It is not a de Polignac number, because 134189771 - 2² = 134189767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134189779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127766 + ... + 128811.

It is an arithmetic number, because the mean of its divisors is an integer number (33611718).

Almost surely, 2^134189771 is an apocalyptic number.

134189771 is a deficient number, since it is larger than the sum of its proper divisors (257101).

134189771 is an equidigital number, since it uses as much as digits as its factorization.

134189771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257100.

The product of its digits is 42336, while the sum is 41.

The square root of 134189771 is about 11584.0308614920. The cubic root of 134189771 is about 511.9644483676.

The spelling of 134189771 in words is "one hundred thirty-four million, one hundred eighty-nine thousand, seven hundred seventy-one".