133206466 has 4 divisors (see below), whose sum is σ = 199809702. Its totient is φ = 66603232.

The previous prime is 133206457. The next prime is 133206467. The reversal of 133206466 is 664602331.

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., 110691441 + 22515025 = 10521^2 + 4745^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (133206467) 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, 33301615 + ... + 33301618.

Almost surely, 2^133206466 is an apocalyptic number.

133206466 is a deficient number, since it is larger than the sum of its proper divisors (66603236).

133206466 is an equidigital number, since it uses as much as digits as its factorization.

133206466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66603235.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 133206466 is about 11541.5105597144. The cubic root of 133206466 is about 510.7108707865.

Adding to 133206466 its reverse (664602331), we get a palindrome (797808797).

The spelling of 133206466 in words is "one hundred thirty-three million, two hundred six thousand, four hundred sixty-six".