133153443 has 16 divisors (see below), whose sum is σ = 197444640. Its totient is φ = 88687872.

The previous prime is 133153409. The next prime is 133153453. The reversal of 133153443 is 344351331.

133153443 is a `hidden beast` number, since 1 + 3 + 315 + 344 + 3 = 666.

It is not a de Polignac number, because 133153443 - 2¹⁰ = 133152419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (133153453) 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 15 ways as a sum of consecutive naturals, for example, 49255 + ... + 51887.

It is an arithmetic number, because the mean of its divisors is an integer number (12340290).

Almost surely, 2^133153443 is an apocalyptic number.

133153443 is a deficient number, since it is larger than the sum of its proper divisors (64291197).

133153443 is a wasteful number, since it uses less digits than its factorization.

133153443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515 (or 4509 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 133153443 is about 11539.2132747428. The cubic root of 133153443 is about 510.6430987604.

The spelling of 133153443 in words is "one hundred thirty-three million, one hundred fifty-three thousand, four hundred forty-three".