133253222 has 4 divisors (see below), whose sum is σ = 199879836. Its totient is φ = 66626610.

The previous prime is 133253209. The next prime is 133253227. The reversal of 133253222 is 222352331.

133253222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222352331 = 53 ⋅4195327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133253227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33313304 + ... + 33313307.

It is an arithmetic number, because the mean of its divisors is an integer number (49969959).

Almost surely, 2^133253222 is an apocalyptic number.

133253222 is a deficient number, since it is larger than the sum of its proper divisors (66626614).

133253222 is an equidigital number, since it uses as much as digits as its factorization.

133253222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66626613.

The product of its digits is 2160, while the sum is 23.

The square root of 133253222 is about 11543.5359400835. The cubic root of 133253222 is about 510.7706176464.

The spelling of 133253222 in words is "one hundred thirty-three million, two hundred fifty-three thousand, two hundred twenty-two".