133243222 has 16 divisors (see below), whose sum is σ = 228794112. Its totient is φ = 57009960.

The previous prime is 133243207. The next prime is 133243223. The reversal of 133243222 is 222342331.

It is a junction number, because it is equal to n+sod(n) for n = 133243193 and 133243202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133243223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1293 + ... + 16375.

It is an arithmetic number, because the mean of its divisors is an integer number (14299632).

Almost surely, 2^133243222 is an apocalyptic number.

133243222 is a deficient number, since it is larger than the sum of its proper divisors (95550890).

133243222 is a wasteful number, since it uses less digits than its factorization.

133243222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15723.

The product of its digits is 1728, while the sum is 22.

The square root of 133243222 is about 11543.1027891118. The cubic root of 133243222 is about 510.7578403845.

Adding to 133243222 its reverse (222342331), we get a palindrome (355585553).

The spelling of 133243222 in words is "one hundred thirty-three million, two hundred forty-three thousand, two hundred twenty-two".