133621006 has 8 divisors (see below), whose sum is σ = 203254704. Its totient is φ = 65869440.

The previous prime is 133621001. The next prime is 133621021. The reversal of 133621006 is 600126331.

133621006 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133621001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470355 + ... + 470638.

It is an arithmetic number, because the mean of its divisors is an integer number (25406838).

Almost surely, 2^133621006 is an apocalyptic number.

133621006 is a deficient number, since it is larger than the sum of its proper divisors (69633698).

133621006 is an equidigital number, since it uses as much as digits as its factorization.

133621006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941066.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 133621006 is about 11559.4552639819. The cubic root of 133621006 is about 511.2401014736.

Adding to 133621006 its reverse (600126331), we get a palindrome (733747337).

The spelling of 133621006 in words is "one hundred thirty-three million, six hundred twenty-one thousand, six".