133582986 has 16 divisors (see below), whose sum is σ = 296851200. Its totient is φ = 44527644.

The previous prime is 133582909. The next prime is 133582993. The reversal of 133582986 is 689285331.

It is a happy number.

133582986 is a `hidden beast` number, since 1 + 3 + 358 + 298 + 6 = 666.

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, 1236826 + ... + 1236933.

It is an arithmetic number, because the mean of its divisors is an integer number (18553200).

Almost surely, 2^133582986 is an apocalyptic number.

133582986 is an abundant number, since it is smaller than the sum of its proper divisors (163268214).

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

133582986 is a wasteful number, since it uses less digits than its factorization.

133582986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473770 (or 2473764 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 133582986 is about 11557.8106058198. The cubic root of 133582986 is about 511.1916081190.

The spelling of 133582986 in words is "one hundred thirty-three million, five hundred eighty-two thousand, nine hundred eighty-six".