133021264 has 20 divisors (see below), whose sum is σ = 261577504. Its totient is φ = 65517408.

The previous prime is 133021249. The next prime is 133021267. The reversal of 133021264 is 462120331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133021267) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60972 + ... + 63115.

Almost surely, 2^133021264 is an apocalyptic number.

It is an amenable number.

133021264 is a deficient number, since it is larger than the sum of its proper divisors (128556240).

133021264 is a wasteful number, since it uses less digits than its factorization.

133021264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124162 (or 124156 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 133021264 is about 11533.4844691446. The cubic root of 133021264 is about 510.4740741147.

Adding to 133021264 its reverse (462120331), we get a palindrome (595141595).

The spelling of 133021264 in words is "one hundred thirty-three million, twenty-one thousand, two hundred sixty-four".