133508066 has 4 divisors (see below), whose sum is σ = 200262102. Its totient is φ = 66754032.

The previous prime is 133508057. The next prime is 133508101. The reversal of 133508066 is 660805331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 90801841 + 42706225 = 9529^2 + 6535^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 33377015 + ... + 33377018.

Almost surely, 2^133508066 is an apocalyptic number.

133508066 is a deficient number, since it is larger than the sum of its proper divisors (66754036).

133508066 is an equidigital number, since it uses as much as digits as its factorization.

133508066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66754035.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 133508066 is about 11554.5690529764. The cubic root of 133508066 is about 511.0960229986.

The spelling of 133508066 in words is "one hundred thirty-three million, five hundred eight thousand, sixty-six".