133118844 has 12 divisors (see below), whose sum is σ = 310610664. Its totient is φ = 44372944.

The previous prime is 133118837. The next prime is 133118849. The reversal of 133118844 is 448811331.

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

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133118849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5546607 + ... + 5546630.

It is an arithmetic number, because the mean of its divisors is an integer number (25884222).

Almost surely, 2^133118844 is an apocalyptic number.

It is an amenable number.

133118844 is an abundant number, since it is smaller than the sum of its proper divisors (177491820).

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

133118844 is a wasteful number, since it uses less digits than its factorization.

133118844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11093244 (or 11093242 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 133118844 is about 11537.7139850145. The cubic root of 133118844 is about 510.5988659047.

It can be divided in two parts, 13311 and 8844, that added together give a triangular number (22155 = T₂₁₀).

The spelling of 133118844 in words is "one hundred thirty-three million, one hundred eighteen thousand, eight hundred forty-four".