133385886 has 16 divisors (see below), whose sum is σ = 296413200. Its totient is φ = 44461944.

The previous prime is 133385831. The next prime is 133385911. The reversal of 133385886 is 688583331.

133385886 is a `hidden beast` number, since 1 + 33 + 38 + 588 + 6 = 666.

It is a Curzon number.

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, 1235001 + ... + 1235108.

It is an arithmetic number, because the mean of its divisors is an integer number (18525825).

Almost surely, 2^133385886 is an apocalyptic number.

133385886 is an abundant number, since it is smaller than the sum of its proper divisors (163027314).

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

133385886 is a wasteful number, since it uses less digits than its factorization.

133385886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470120 (or 2470114 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 133385886 is about 11549.2807568264. The cubic root of 133385886 is about 510.9400654530.

The spelling of 133385886 in words is "one hundred thirty-three million, three hundred eighty-five thousand, eight hundred eighty-six".