133500044 has 12 divisors (see below), whose sum is σ = 233852304. Its totient is φ = 66685104.

The previous prime is 133500019. The next prime is 133500047. The reversal of 133500044 is 440005331.

133500044 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

133500044 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 133499989 and 133500025.

It is not an unprimeable number, because it can be changed into a prime (133500047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11447 + ... + 19950.

It is an arithmetic number, because the mean of its divisors is an integer number (19487692).

Almost surely, 2^133500044 is an apocalyptic number.

It is an amenable number.

133500044 is a deficient number, since it is larger than the sum of its proper divisors (100352260).

133500044 is a wasteful number, since it uses less digits than its factorization.

133500044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32464 (or 32462 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 133500044 is about 11554.2219123574. The cubic root of 133500044 is about 511.0857861778.

Adding to 133500044 its reverse (440005331), we get a palindrome (573505375).

The spelling of 133500044 in words is "one hundred thirty-three million, five hundred thousand, forty-four".