133525788 has 24 divisors (see below), whose sum is σ = 339884160. Its totient is φ = 40462320.

The previous prime is 133525759. The next prime is 133525813. The reversal of 133525788 is 887525331.

It is a super-2 number, since 2×133525788² = 35658272122041888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505648 + ... + 505911.

It is an arithmetic number, because the mean of its divisors is an integer number (14161840).

Almost surely, 2^133525788 is an apocalyptic number.

It is an amenable number.

133525788 is an abundant number, since it is smaller than the sum of its proper divisors (206358372).

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

133525788 is a wasteful number, since it uses less digits than its factorization.

133525788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011577 (or 1011575 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 133525788 is about 11555.3359103057. The cubic root of 133525788 is about 511.1186364712.

The spelling of 133525788 in words is "one hundred thirty-three million, five hundred twenty-five thousand, seven hundred eighty-eight".