133744144 has 10 divisors (see below), whose sum is σ = 259129310. Its totient is φ = 66872064.

The previous prime is 133744141. The next prime is 133744153. The reversal of 133744144 is 441447331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 88585744 + 45158400 = 9412^2 + 6720^2 .

It is not an unprimeable number, because it can be changed into a prime (133744141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4179489 + ... + 4179520.

It is an arithmetic number, because the mean of its divisors is an integer number (25912931).

Almost surely, 2^133744144 is an apocalyptic number.

It is an amenable number.

133744144 is a deficient number, since it is larger than the sum of its proper divisors (125385166).

133744144 is an equidigital number, since it uses as much as digits as its factorization.

133744144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8359017 (or 8359011 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 133744144 is about 11564.7803264913. The cubic root of 133744144 is about 511.3970971370.

The spelling of 133744144 in words is "one hundred thirty-three million, seven hundred forty-four thousand, one hundred forty-four".