133040408 has 16 divisors (see below), whose sum is σ = 255535560. Its totient is φ = 64897600.

The previous prime is 133040399. The next prime is 133040423. The reversal of 133040408 is 804040331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202478 + ... + 203133.

Almost surely, 2^133040408 is an apocalyptic number.

It is an amenable number.

133040408 is a deficient number, since it is larger than the sum of its proper divisors (122495152).

133040408 is a wasteful number, since it uses less digits than its factorization.

133040408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405658 (or 405654 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 133040408 is about 11534.3143706074. The cubic root of 133040408 is about 510.4985615452.

Adding to 133040408 its reverse (804040331), we get a palindrome (937080739).

The spelling of 133040408 in words is "one hundred thirty-three million, forty thousand, four hundred eight".