67112071 has 4 divisors (see below), whose sum is σ = 72274552. Its totient is φ = 61949592.

The previous prime is 67112041. The next prime is 67112081. The reversal of 67112071 is 17021176.

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 67112071 - 2¹¹ = 67110023 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 (67112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2581221 + ... + 2581246.

It is an arithmetic number, because the mean of its divisors is an integer number (18068638).

Almost surely, 2^67112071 is an apocalyptic number.

67112071 is a deficient number, since it is larger than the sum of its proper divisors (5162481).

67112071 is a wasteful number, since it uses less digits than its factorization.

67112071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162480.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 67112071 is about 8192.1957374076. The cubic root of 67112071 is about 406.3811424816.

The spelling of 67112071 in words is "sixty-seven million, one hundred twelve thousand, seventy-one".