133316144 has 20 divisors (see below), whose sum is σ = 278169696. Its totient is φ = 61530432.

The previous prime is 133316107. The next prime is 133316149. The reversal of 133316144 is 441613331.

133316144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (133316149) 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, 320264 + ... + 320679.

Almost surely, 2^133316144 is an apocalyptic number.

It is an amenable number.

133316144 is an abundant number, since it is smaller than the sum of its proper divisors (144853552).

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

133316144 is a wasteful number, since it uses less digits than its factorization.

133316144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640964 (or 640958 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 133316144 is about 11546.2610398345. The cubic root of 133316144 is about 510.8510000718.

Adding to 133316144 its reverse (441613331), we get a palindrome (574929475).

The spelling of 133316144 in words is "one hundred thirty-three million, three hundred sixteen thousand, one hundred forty-four".