133528485 has 24 divisors (see below), whose sum is σ = 225491040. Its totient is φ = 67464288.

The previous prime is 133528477. The next prime is 133528511. The reversal of 133528485 is 584825331.

It is not a de Polignac number, because 133528485 - 2³ = 133528477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6915 + ... + 17744.

It is an arithmetic number, because the mean of its divisors is an integer number (9395460).

Almost surely, 2^133528485 is an apocalyptic number.

133528485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133528485 is a deficient number, since it is larger than the sum of its proper divisors (91962555).

133528485 is a wasteful number, since it uses less digits than its factorization.

133528485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24705 (or 24686 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 133528485 is about 11555.4526090500. The cubic root of 133528485 is about 511.1220776983.

The spelling of 133528485 in words is "one hundred thirty-three million, five hundred twenty-eight thousand, four hundred eighty-five".