134680187 has 2 divisors, whose sum is σ = 134680188. Its totient is φ = 134680186.

The previous prime is 134680177. The next prime is 134680201. The reversal of 134680187 is 781086431.

It is a weak prime.

It is an emirp because it is prime and its reverse (781086431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134680187 - 2⁶ = 134680123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134680187.

It is not a weakly prime, because it can be changed into another prime (134680127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67340093 + 67340094.

It is an arithmetic number, because the mean of its divisors is an integer number (67340094).

Almost surely, 2^134680187 is an apocalyptic number.

134680187 is a deficient number, since it is larger than the sum of its proper divisors (1).

134680187 is an equidigital number, since it uses as much as digits as its factorization.

134680187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 134680187 is about 11605.1793178736. The cubic root of 134680187 is about 512.5873729282.

The spelling of 134680187 in words is "one hundred thirty-four million, six hundred eighty thousand, one hundred eighty-seven".