134974187 has 16 divisors (see below), whose sum is σ = 141702912. Its totient is φ = 128446560.

The previous prime is 134974141. The next prime is 134974201. The reversal of 134974187 is 781479431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134974187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134974117) 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 in 15 ways as a sum of consecutive naturals, for example, 407612 + ... + 407942.

It is an arithmetic number, because the mean of its divisors is an integer number (8856432).

Almost surely, 2^134974187 is an apocalyptic number.

134974187 is a deficient number, since it is larger than the sum of its proper divisors (6728725).

134974187 is a wasteful number, since it uses less digits than its factorization.

134974187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578.

The product of its digits is 169344, while the sum is 44.

The square root of 134974187 is about 11617.8391708613. The cubic root of 134974187 is about 512.9600859121.

The spelling of 134974187 in words is "one hundred thirty-four million, nine hundred seventy-four thousand, one hundred eighty-seven".