133733528 has 8 divisors (see below), whose sum is σ = 250750380. Its totient is φ = 66866760.

The previous prime is 133733527. The next prime is 133733531. The reversal of 133733528 is 825337331.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×133733528² = 35769313022653568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133733521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8358338 + ... + 8358353.

Almost surely, 2^133733528 is an apocalyptic number.

It is an amenable number.

133733528 is a deficient number, since it is larger than the sum of its proper divisors (117016852).

133733528 is a wasteful number, since it uses less digits than its factorization.

133733528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16716697 (or 16716693 counting only the distinct ones).

The product of its digits is 45360, while the sum is 35.

The square root of 133733528 is about 11564.3213376315. The cubic root of 133733528 is about 511.3835659895.

The spelling of 133733528 in words is "one hundred thirty-three million, seven hundred thirty-three thousand, five hundred twenty-eight".