133828485 has 16 divisors (see below), whose sum is σ = 244715136. Its totient is φ = 61178688.

The previous prime is 133828477. The next prime is 133828501. The reversal of 133828485 is 584828331.

It is not a de Polignac number, because 133828485 - 2³ = 133828477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 637174 + ... + 637383.

It is an arithmetic number, because the mean of its divisors is an integer number (15294696).

Almost surely, 2^133828485 is an apocalyptic number.

133828485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133828485 is a deficient number, since it is larger than the sum of its proper divisors (110886651).

133828485 is a wasteful number, since it uses less digits than its factorization.

133828485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274572.

The product of its digits is 184320, while the sum is 42.

The square root of 133828485 is about 11568.4262110280. The cubic root of 133828485 is about 511.5045726943.

The spelling of 133828485 in words is "one hundred thirty-three million, eight hundred twenty-eight thousand, four hundred eighty-five".