133521605144 has 16 divisors (see below), whose sum is σ = 256175173320. Its totient is φ = 65208225600.

The previous prime is 133521605131. The next prime is 133521605167. The reversal of 133521605144 is 441506125331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194071757 + ... + 194072444.

Almost surely, 2^133521605144 is an apocalyptic number.

It is an amenable number.

133521605144 is a deficient number, since it is larger than the sum of its proper divisors (122653568176).

133521605144 is a wasteful number, since it uses less digits than its factorization.

133521605144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388144250 (or 388144246 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 133521605144 in words is "one hundred thirty-three billion, five hundred twenty-one million, six hundred five thousand, one hundred forty-four".