133819756 has 12 divisors (see below), whose sum is σ = 267639568. Its totient is φ = 57351312.

The previous prime is 133819747. The next prime is 133819769. The reversal of 133819756 is 657918331.

133819756 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2389611 + ... + 2389666.

Almost surely, 2^133819756 is an apocalyptic number.

It is an amenable number.

133819756 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133819756 is a wasteful number, since it uses less digits than its factorization.

133819756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779288 (or 4779286 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 133819756 is about 11568.0489279740. The cubic root of 133819756 is about 511.4934514434.

The spelling of 133819756 in words is "one hundred thirty-three million, eight hundred nineteen thousand, seven hundred fifty-six".