133940068 has 12 divisors (see below), whose sum is σ = 234586800. Its totient is φ = 66915272.

The previous prime is 133940047. The next prime is 133940069. The reversal of 133940068 is 860049331.

It is not an unprimeable number, because it can be changed into a prime (133940069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7918 + ... + 18181.

It is an arithmetic number, because the mean of its divisors is an integer number (19548900).

Almost surely, 2^133940068 is an apocalyptic number.

It is an amenable number.

133940068 is a deficient number, since it is larger than the sum of its proper divisors (100646732).

133940068 is a wasteful number, since it uses less digits than its factorization.

133940068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27386 (or 27384 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 133940068 is about 11573.2479451535. The cubic root of 133940068 is about 511.6466933085.

Adding to 133940068 its reverse (860049331), we get a palindrome (993989399).

The spelling of 133940068 in words is "one hundred thirty-three million, nine hundred forty thousand, sixty-eight".