133012226 has 4 divisors (see below), whose sum is σ = 199518342. Its totient is φ = 66506112.

The previous prime is 133012223. The next prime is 133012237. The reversal of 133012226 is 622210331.

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., 130759225 + 2253001 = 11435^2 + 1501^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133012198 and 133012207.

It is not an unprimeable number, because it can be changed into a prime (133012223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33253055 + ... + 33253058.

Almost surely, 2^133012226 is an apocalyptic number.

133012226 is a deficient number, since it is larger than the sum of its proper divisors (66506116).

133012226 is an equidigital number, since it uses as much as digits as its factorization.

133012226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66506115.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 133012226 is about 11533.0926468142. The cubic root of 133012226 is about 510.4625126318.

Adding to 133012226 its reverse (622210331), we get a palindrome (755222557).

The spelling of 133012226 in words is "one hundred thirty-three million, twelve thousand, two hundred twenty-six".