134661671 has 8 divisors (see below), whose sum is σ = 138944400. Its totient is φ = 130426560.

The previous prime is 134661661. The next prime is 134661689. The reversal of 134661671 is 176166431.

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

It is a cyclic number.

It is not a de Polignac number, because 134661671 - 2¹⁸ = 134399527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134661601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6116 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (17368050).

Almost surely, 2^134661671 is an apocalyptic number.

134661671 is a deficient number, since it is larger than the sum of its proper divisors (4282729).

134661671 is a wasteful number, since it uses less digits than its factorization.

134661671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23809.

The product of its digits is 18144, while the sum is 35.

The square root of 134661671 is about 11604.3815431931. The cubic root of 134661671 is about 512.5638814679.

The spelling of 134661671 in words is "one hundred thirty-four million, six hundred sixty-one thousand, six hundred seventy-one".