133525535 has 48 divisors (see below), whose sum is σ = 194630688. Its totient is φ = 86688000.

The previous prime is 133525519. The next prime is 133525571. The reversal of 133525535 is 535525331.

It is not a de Polignac number, because 133525535 - 2⁴ = 133525519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1321985 + ... + 1322085.

It is an arithmetic number, because the mean of its divisors is an integer number (4054806).

Almost surely, 2^133525535 is an apocalyptic number.

133525535 is a deficient number, since it is larger than the sum of its proper divisors (61105153).

133525535 is a wasteful number, since it uses less digits than its factorization.

133525535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 173 counting only the distinct ones).

The product of its digits is 33750, while the sum is 32.

The square root of 133525535 is about 11555.3249629770. The cubic root of 133525535 is about 511.1183136544.

The spelling of 133525535 in words is "one hundred thirty-three million, five hundred twenty-five thousand, five hundred thirty-five".