133670128 has 20 divisors (see below), whose sum is σ = 259452640. Its totient is φ = 66714624.

The previous prime is 133670123. The next prime is 133670153. The reversal of 133670128 is 821076331.

It is a self number, because there is not a number n which added to its sum of digits gives 133670128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133670123) 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 3 ways as a sum of consecutive naturals, for example, 1993 + ... + 16471.

It is an arithmetic number, because the mean of its divisors is an integer number (12972632).

Almost surely, 2^133670128 is an apocalyptic number.

It is an amenable number.

133670128 is a deficient number, since it is larger than the sum of its proper divisors (125782512).

133670128 is a wasteful number, since it uses less digits than its factorization.

133670128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15064 (or 15058 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 133670128 is about 11561.5798228443. The cubic root of 133670128 is about 511.3027414738.

The spelling of 133670128 in words is "one hundred thirty-three million, six hundred seventy thousand, one hundred twenty-eight".