133545544 has 32 divisors (see below), whose sum is σ = 285042240. Its totient is φ = 58062400.

The previous prime is 133545541. The next prime is 133545583. The reversal of 133545544 is 445545331.

It is not an unprimeable number, because it can be changed into a prime (133545541) 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 7 ways as a sum of consecutive naturals, for example, 30967 + ... + 35014.

It is an arithmetic number, because the mean of its divisors is an integer number (8907570).

Almost surely, 2^133545544 is an apocalyptic number.

It is an amenable number.

133545544 is an abundant number, since it is smaller than the sum of its proper divisors (151496696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133545544 is a wasteful number, since it uses less digits than its factorization.

133545544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66021 (or 66017 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 133545544 is about 11556.1907218599. The cubic root of 133545544 is about 511.1438429924.

The spelling of 133545544 in words is "one hundred thirty-three million, five hundred forty-five thousand, five hundred forty-four".