133726664 has 16 divisors (see below), whose sum is σ = 250878300. Its totient is φ = 66825792.

The previous prime is 133726661. The next prime is 133726687. The reversal of 133726664 is 466627331.

It can be written as a sum of positive squares in 2 ways, for example, as 126382564 + 7344100 = 11242^2 + 2710^2 .

It is not an unprimeable number, because it can be changed into a prime (133726661) 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 in 3 ways as a sum of consecutive naturals, for example, 15614 + ... + 22610.

Almost surely, 2^133726664 is an apocalyptic number.

It is an amenable number.

133726664 is a deficient number, since it is larger than the sum of its proper divisors (117151636).

133726664 is a wasteful number, since it uses less digits than its factorization.

133726664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9392 (or 9388 counting only the distinct ones).

The product of its digits is 108864, while the sum is 38.

The square root of 133726664 is about 11564.0245589501. The cubic root of 133726664 is about 511.3748167578.

The spelling of 133726664 in words is "one hundred thirty-three million, seven hundred twenty-six thousand, six hundred sixty-four".