133528925 has 12 divisors (see below), whose sum is σ = 167439060. Its totient is φ = 105621120.

The previous prime is 133528909. The next prime is 133528951. The reversal of 133528925 is 529825331.

It can be written as a sum of positive squares in 6 ways, for example, as 3865156 + 129663769 = 1966^2 + 11387^2 .

It is not a de Polignac number, because 133528925 - 2⁴ = 133528909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27782 + ... + 32231.

It is an arithmetic number, because the mean of its divisors is an integer number (13953255).

Almost surely, 2^133528925 is an apocalyptic number.

It is an amenable number.

133528925 is a deficient number, since it is larger than the sum of its proper divisors (33910135).

133528925 is an equidigital number, since it uses as much as digits as its factorization.

133528925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60112 (or 60107 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 133528925 is about 11555.4716476654. The cubic root of 133528925 is about 511.1226391102.

The spelling of 133528925 in words is "one hundred thirty-three million, five hundred twenty-eight thousand, nine hundred twenty-five".