67134071 has 4 divisors (see below), whose sum is σ = 71083152. Its totient is φ = 63184992.

The previous prime is 67134059. The next prime is 67134073. The reversal of 67134071 is 17043176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67134071 - 2⁶ = 67134007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67134073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1974515 + ... + 1974548.

It is an arithmetic number, because the mean of its divisors is an integer number (17770788).

Almost surely, 2^67134071 is an apocalyptic number.

67134071 is a deficient number, since it is larger than the sum of its proper divisors (3949081).

67134071 is a wasteful number, since it uses less digits than its factorization.

67134071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3949080.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 67134071 is about 8193.5383687391. The cubic root of 67134071 is about 406.4255428816.

The spelling of 67134071 in words is "sixty-seven million, one hundred thirty-four thousand, seventy-one".