67224133 has 4 divisors (see below), whose sum is σ = 68863788. Its totient is φ = 65584480.

The previous prime is 67224121. The next prime is 67224161. The reversal of 67224133 is 33142276.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11168964 + 56055169 = 3342^2 + 7487^2 .

It is a cyclic number.

It is not a de Polignac number, because 67224133 - 2⁹ = 67223621 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 (67224173) 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, 819766 + ... + 819847.

It is an arithmetic number, because the mean of its divisors is an integer number (17215947).

Almost surely, 2^67224133 is an apocalyptic number.

It is an amenable number.

67224133 is a deficient number, since it is larger than the sum of its proper divisors (1639655).

67224133 is a wasteful number, since it uses less digits than its factorization.

67224133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639654.

The product of its digits is 6048, while the sum is 28.

The square root of 67224133 is about 8199.0324429167. The cubic root of 67224133 is about 406.6072049434.

The spelling of 67224133 in words is "sixty-seven million, two hundred twenty-four thousand, one hundred thirty-three".