133144224 has 48 divisors (see below), whose sum is σ = 350461440. Its totient is φ = 44259840.

The previous prime is 133144169. The next prime is 133144243. The reversal of 133144224 is 422441331.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 133144194 and 133144203.

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 7 ways as a sum of consecutive naturals, for example, 37569 + ... + 40959.

It is an arithmetic number, because the mean of its divisors is an integer number (7301280).

Almost surely, 2^133144224 is an apocalyptic number.

It is an amenable number.

133144224 is an abundant number, since it is smaller than the sum of its proper divisors (217317216).

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

133144224 is a wasteful number, since it uses less digits than its factorization.

133144224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813 (or 3805 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 133144224 is about 11538.8138038535. The cubic root of 133144224 is about 510.6313135416.

Adding to 133144224 its reverse (422441331), we get a palindrome (555585555).

The spelling of 133144224 in words is "one hundred thirty-three million, one hundred forty-four thousand, two hundred twenty-four".