133152644 has 6 divisors (see below), whose sum is σ = 233017134. Its totient is φ = 66576320.

The previous prime is 133152637. The next prime is 133152647. The reversal of 133152644 is 446251331.

133152644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 79423744 + 53728900 = 8912^2 + 7330^2 .

It is not an unprimeable number, because it can be changed into a prime (133152647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16644077 + ... + 16644084.

It is an arithmetic number, because the mean of its divisors is an integer number (38836189).

Almost surely, 2^133152644 is an apocalyptic number.

It is an amenable number.

133152644 is a deficient number, since it is larger than the sum of its proper divisors (99864490).

133152644 is a wasteful number, since it uses less digits than its factorization.

133152644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33288165 (or 33288163 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 133152644 is about 11539.1786536131. The cubic root of 133152644 is about 510.6420773707.

The spelling of 133152644 in words is "one hundred thirty-three million, one hundred fifty-two thousand, six hundred forty-four".