133628508 has 48 divisors (see below), whose sum is σ = 373097760. Its totient is φ = 41116032.

The previous prime is 133628479. The next prime is 133628519. The reversal of 133628508 is 805826331.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 46185 + ... + 48992.

It is an arithmetic number, because the mean of its divisors is an integer number (7772870).

Almost surely, 2^133628508 is an apocalyptic number.

133628508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

133628508 is an abundant number, since it is smaller than the sum of its proper divisors (239469252).

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

133628508 is a wasteful number, since it uses less digits than its factorization.

133628508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95203 (or 95195 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 133628508 is about 11559.7797556874. The cubic root of 133628508 is about 511.2496689600.

The spelling of 133628508 in words is "one hundred thirty-three million, six hundred twenty-eight thousand, five hundred eight".