133303066 has 32 divisors (see below), whose sum is σ = 222425280. Its totient is φ = 59533056.

The previous prime is 133303057. The next prime is 133303067. The reversal of 133303066 is 660303331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133303066.

It is not an unprimeable number, because it can be changed into a prime (133303067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102130 + ... + 103426.

It is an arithmetic number, because the mean of its divisors is an integer number (6950790).

Almost surely, 2^133303066 is an apocalyptic number.

133303066 is a deficient number, since it is larger than the sum of its proper divisors (89122214).

133303066 is a wasteful number, since it uses less digits than its factorization.

133303066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 2916, while the sum is 25.

The square root of 133303066 is about 11545.6946954265. The cubic root of 133303066 is about 510.8342950985.

Adding to 133303066 its reverse (660303331), we get a palindrome (793606397).

The spelling of 133303066 in words is "one hundred thirty-three million, three hundred three thousand, sixty-six".