133222452 has 96 divisors (see below), whose sum is σ = 360729600. Its totient is φ = 38158560.

The previous prime is 133222451. The next prime is 133222477. The reversal of 133222452 is 254222331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133222451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303249 + ... + 303687.

It is an arithmetic number, because the mean of its divisors is an integer number (3757600).

Almost surely, 2^133222452 is an apocalyptic number.

133222452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133222452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180364800).

133222452 is an abundant number, since it is smaller than the sum of its proper divisors (227507148).

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

133222452 is a wasteful number, since it uses less digits than its factorization.

133222452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 474 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 133222452 is about 11542.2030826008. The cubic root of 133222452 is about 510.7312999685.

Adding to 133222452 its reverse (254222331), we get a palindrome (387444783).

The spelling of 133222452 in words is "one hundred thirty-three million, two hundred twenty-two thousand, four hundred fifty-two".