133164266 has 4 divisors (see below), whose sum is σ = 199746402. Its totient is φ = 66582132.

The previous prime is 133164253. The next prime is 133164277. The reversal of 133164266 is 662461331.

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., 128346241 + 4818025 = 11329^2 + 2195^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33291065 + ... + 33291068.

Almost surely, 2^133164266 is an apocalyptic number.

133164266 is a deficient number, since it is larger than the sum of its proper divisors (66582136).

133164266 is an equidigital number, since it uses as much as digits as its factorization.

133164266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66582135.

The product of its digits is 15552, while the sum is 32.

The square root of 133164266 is about 11539.6822313268. The cubic root of 133164266 is about 510.6569337776.

The spelling of 133164266 in words is "one hundred thirty-three million, one hundred sixty-four thousand, two hundred sixty-six".