133288572 has 24 divisors (see below), whose sum is σ = 327376000. Its totient is φ = 42091056.

The previous prime is 133288567. The next prime is 133288577. The reversal of 133288572 is 275882331.

133288572 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (133288567) and next prime (133288577).

It is a self number, because there is not a number n which added to its sum of digits gives 133288572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133288577) 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 7 ways as a sum of consecutive naturals, for example, 292072 + ... + 292527.

Almost surely, 2^133288572 is an apocalyptic number.

133288572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133288572 is an abundant number, since it is smaller than the sum of its proper divisors (194087428).

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

133288572 is a wasteful number, since it uses less digits than its factorization.

133288572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584625 (or 584623 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 133288572 is about 11545.0669985063. The cubic root of 133288572 is about 510.8157801439.

The spelling of 133288572 in words is "one hundred thirty-three million, two hundred eighty-eight thousand, five hundred seventy-two".