133031308 has 6 divisors (see below), whose sum is σ = 232804796. Its totient is φ = 66515652.

The previous prime is 133031299. The next prime is 133031377. The reversal of 133031308 is 803130331.

133031308 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16628910 + ... + 16628917.

Almost surely, 2^133031308 is an apocalyptic number.

It is an amenable number.

133031308 is a deficient number, since it is larger than the sum of its proper divisors (99773488).

133031308 is a wasteful number, since it uses less digits than its factorization.

133031308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33257831 (or 33257829 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 133031308 is about 11533.9198887455. The cubic root of 133031308 is about 510.4869218665.

Adding to 133031308 its reverse (803130331), we get a palindrome (936161639).

The spelling of 133031308 in words is "one hundred thirty-three million, thirty-one thousand, three hundred eight".