133006986 has 24 divisors (see below), whose sum is σ = 329350944. Its totient is φ = 38001960.

The previous prime is 133006981. The next prime is 133007003. The reversal of 133006986 is 689600331.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133006986.

It is not an unprimeable number, because it can be changed into a prime (133006981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 527680 + ... + 527931.

It is an arithmetic number, because the mean of its divisors is an integer number (13722956).

Almost surely, 2^133006986 is an apocalyptic number.

133006986 is an abundant number, since it is smaller than the sum of its proper divisors (196343958).

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

133006986 is a wasteful number, since it uses less digits than its factorization.

133006986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055626 (or 1055623 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 133006986 is about 11532.8654722059. The cubic root of 133006986 is about 510.4558093415.

The spelling of 133006986 in words is "one hundred thirty-three million, six thousand, nine hundred eighty-six".