133545044 has 12 divisors (see below), whose sum is σ = 234278100. Its totient is φ = 66608448.

The previous prime is 133545019. The next prime is 133545059. The reversal of 133545044 is 440545331.

It can be written as a sum of positive squares in 2 ways, for example, as 113635600 + 19909444 = 10660^2 + 4462^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133544998 and 133545016.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 39179 + ... + 42450.

It is an arithmetic number, because the mean of its divisors is an integer number (19523175).

Almost surely, 2^133545044 is an apocalyptic number.

It is an amenable number.

133545044 is a deficient number, since it is larger than the sum of its proper divisors (100733056).

133545044 is a wasteful number, since it uses less digits than its factorization.

133545044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82042 (or 82040 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 133545044 is about 11556.1690884133. The cubic root of 133545044 is about 511.1432050770.

The spelling of 133545044 in words is "one hundred thirty-three million, five hundred forty-five thousand, forty-four".