133944912 has 30 divisors (see below), whose sum is σ = 374860122. Its totient is φ = 44648256.

The previous prime is 133944857. The next prime is 133944913. The reversal of 133944912 is 219449331.

It can be written as a sum of positive squares in only one way, i.e., 122412096 + 11532816 = 11064^2 + 3396^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133944913) 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 5 ways as a sum of consecutive naturals, for example, 464943 + ... + 465230.

Almost surely, 2^133944912 is an apocalyptic number.

133944912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133944912 is an abundant number, since it is smaller than the sum of its proper divisors (240915210).

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

133944912 is a wasteful number, since it uses less digits than its factorization.

133944912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930187 (or 930178 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 133944912 is about 11573.4572189990. The cubic root of 133944912 is about 511.6528612081.

The spelling of 133944912 in words is "one hundred thirty-three million, nine hundred forty-four thousand, nine hundred twelve".