133525536 has 24 divisors (see below), whose sum is σ = 350504784. Its totient is φ = 44508480.

The previous prime is 133525519. The next prime is 133525571. The reversal of 133525536 is 635525331.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 133525497 and 133525506.

It is an unprimeable number.

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, 695350 + ... + 695541.

It is an arithmetic number, because the mean of its divisors is an integer number (14604366).

Almost surely, 2^133525536 is an apocalyptic number.

133525536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

133525536 is an abundant number, since it is smaller than the sum of its proper divisors (216979248).

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

133525536 is a wasteful number, since it uses less digits than its factorization.

133525536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390904 (or 1390896 counting only the distinct ones).

The product of its digits is 40500, while the sum is 33.

The square root of 133525536 is about 11555.3250062471. The cubic root of 133525536 is about 511.1183149303.

The spelling of 133525536 in words is "one hundred thirty-three million, five hundred twenty-five thousand, five hundred thirty-six".