133994066 has 4 divisors (see below), whose sum is σ = 200991102. Its totient is φ = 66997032.

The previous prime is 133994009. The next prime is 133994071. The reversal of 133994066 is 660499331.

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., 121638841 + 12355225 = 11029^2 + 3515^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33498515 + ... + 33498518.

Almost surely, 2^133994066 is an apocalyptic number.

133994066 is a deficient number, since it is larger than the sum of its proper divisors (66997036).

133994066 is an equidigital number, since it uses as much as digits as its factorization.

133994066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66997035.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 133994066 is about 11575.5805901907. The cubic root of 133994066 is about 511.7154409373.

The spelling of 133994066 in words is "one hundred thirty-three million, nine hundred ninety-four thousand, sixty-six".