133481336 has 8 divisors (see below), whose sum is σ = 250277520. Its totient is φ = 66740664.

The previous prime is 133481329. The next prime is 133481339. The reversal of 133481336 is 633184331.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133481339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8342576 + ... + 8342591.

It is an arithmetic number, because the mean of its divisors is an integer number (31284690).

Almost surely, 2^133481336 is an apocalyptic number.

It is an amenable number.

133481336 is a deficient number, since it is larger than the sum of its proper divisors (116796184).

133481336 is a wasteful number, since it uses less digits than its factorization.

133481336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16685173 (or 16685169 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

The square root of 133481336 is about 11553.4123097897. The cubic root of 133481336 is about 511.0619114303.

The spelling of 133481336 in words is "one hundred thirty-three million, four hundred eighty-one thousand, three hundred thirty-six".