33130066 has 4 divisors (see below), whose sum is σ = 49695102. Its totient is φ = 16565032.

The previous prime is 33130061. The next prime is 33130067. The reversal of 33130066 is 66003133.

It is a happy number.

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., 24255625 + 8874441 = 4925^2 + 2979^2 .

It is not an unprimeable number, because it can be changed into a prime (33130061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8282515 + ... + 8282518.

Almost surely, 2^33130066 is an apocalyptic number.

33130066 is a deficient number, since it is larger than the sum of its proper divisors (16565036).

33130066 is a wasteful number, since it uses less digits than its factorization.

33130066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16565035.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 33130066 is about 5755.8723057413. The cubic root of 33130066 is about 321.1742857797.

Adding to 33130066 its reverse (66003133), we get a palindrome (99133199).

The spelling of 33130066 in words is "thirty-three million, one hundred thirty thousand, sixty-six".