133656006 has 64 divisors (see below), whose sum is σ = 311351040. Its totient is φ = 37800960.

The previous prime is 133655969. The next prime is 133656031. The reversal of 133656006 is 600656331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155530 + ... + 156386.

It is an arithmetic number, because the mean of its divisors is an integer number (4864860).

Almost surely, 2^133656006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133656006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155675520).

133656006 is an abundant number, since it is smaller than the sum of its proper divisors (177695034).

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

133656006 is a wasteful number, since it uses less digits than its factorization.

133656006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 133656006 is about 11560.9690770281. The cubic root of 133656006 is about 511.2847347789.

The spelling of 133656006 in words is "one hundred thirty-three million, six hundred fifty-six thousand, six".