133916844 has 12 divisors (see below), whose sum is σ = 312472664. Its totient is φ = 44638944.

The previous prime is 133916831. The next prime is 133916873. The reversal of 133916844 is 448619331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×133916844² = 35867442213840672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 5579857 + ... + 5579880.

Almost surely, 2^133916844 is an apocalyptic number.

It is an amenable number.

133916844 is an abundant number, since it is smaller than the sum of its proper divisors (178555820).

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

133916844 is a wasteful number, since it uses less digits than its factorization.

133916844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11159744 (or 11159742 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 133916844 is about 11572.2445532403. The cubic root of 133916844 is about 511.6171199582.

The spelling of 133916844 in words is "one hundred thirty-three million, nine hundred sixteen thousand, eight hundred forty-four".