133243422 has 24 divisors (see below), whose sum is σ = 287205576. Its totient is φ = 40966608.

The previous prime is 133243403. The next prime is 133243423. The reversal of 133243422 is 224342331.

It is a junction number, because it is equal to n+sod(n) for n = 133243392 and 133243401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133243423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101293 + ... + 102599.

It is an arithmetic number, because the mean of its divisors is an integer number (11966899).

Almost surely, 2^133243422 is an apocalyptic number.

133243422 is an abundant number, since it is smaller than the sum of its proper divisors (153962154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133243422 is an equidigital number, since it uses as much as digits as its factorization.

133243422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632 (or 1325 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 133243422 is about 11543.1114522905. Note that the first 3 decimals coincide. The cubic root of 133243422 is about 510.7580959360.

Adding to 133243422 its reverse (224342331), we get a palindrome (357585753).

The spelling of 133243422 in words is "one hundred thirty-three million, two hundred forty-three thousand, four hundred twenty-two".