133245222 has 32 divisors (see below), whose sum is σ = 291561984. Its totient is φ = 40260000.

The previous prime is 133245199. The next prime is 133245239. The reversal of 133245222 is 222542331.

It is a junction number, because it is equal to n+sod(n) for n = 133245192 and 133245201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21472 + ... + 26972.

It is an arithmetic number, because the mean of its divisors is an integer number (9111312).

Almost surely, 2^133245222 is an apocalyptic number.

133245222 is an abundant number, since it is smaller than the sum of its proper divisors (158316762).

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

133245222 is a wasteful number, since it uses less digits than its factorization.

133245222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884.

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

The square root of 133245222 is about 11543.1894206064. The cubic root of 133245222 is about 510.7603958880.

Adding to 133245222 its reverse (222542331), we get a palindrome (355787553).

The spelling of 133245222 in words is "one hundred thirty-three million, two hundred forty-five thousand, two hundred twenty-two".