67143009 has 8 divisors (see below), whose sum is σ = 89653120. Its totient is φ = 44697456.

The previous prime is 67143007. The next prime is 67143031. The reversal of 67143009 is 90034176.

It is a happy number.

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

It is not a de Polignac number, because 67143009 - 2¹ = 67143007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67143007) 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 7 ways as a sum of consecutive naturals, for example, 13657 + ... + 17910.

It is an arithmetic number, because the mean of its divisors is an integer number (11206640).

Almost surely, 2^67143009 is an apocalyptic number.

It is an amenable number.

67143009 is a deficient number, since it is larger than the sum of its proper divisors (22510111).

67143009 is a wasteful number, since it uses less digits than its factorization.

67143009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32279.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 67143009 is about 8194.0837803869. The cubic root of 67143009 is about 406.4435787822.

The spelling of 67143009 in words is "sixty-seven million, one hundred forty-three thousand, nine".