133344664 has 16 divisors (see below), whose sum is σ = 250438320. Its totient is φ = 66561120.

The previous prime is 133344649. The next prime is 133344667. The reversal of 133344664 is 466443331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133344667) 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, 8692 + ... + 18499.

It is an arithmetic number, because the mean of its divisors is an integer number (15652395).

Almost surely, 2^133344664 is an apocalyptic number.

It is an amenable number.

133344664 is a deficient number, since it is larger than the sum of its proper divisors (117093656).

133344664 is a wasteful number, since it uses less digits than its factorization.

133344664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27810 (or 27806 counting only the distinct ones).

The product of its digits is 62208, while the sum is 34.

The square root of 133344664 is about 11547.4960056282. The cubic root of 133344664 is about 510.8874258470.

Adding to 133344664 its reverse (466443331), we get a palindrome (599787995).

The spelling of 133344664 in words is "one hundred thirty-three million, three hundred forty-four thousand, six hundred sixty-four".