133322660 has 12 divisors (see below), whose sum is σ = 279977628. Its totient is φ = 53329056.

The previous prime is 133322641. The next prime is 133322669. The reversal of 133322660 is 66223331.

It can be written as a sum of positive squares in 2 ways, for example, as 46758244 + 86564416 = 6838^2 + 9304^2 .

It is not an unprimeable number, because it can be changed into a prime (133322669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333047 + ... + 3333086.

It is an arithmetic number, because the mean of its divisors is an integer number (23331469).

Almost surely, 2^133322660 is an apocalyptic number.

133322660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133322660 is an abundant number, since it is smaller than the sum of its proper divisors (146654968).

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

133322660 is a wasteful number, since it uses less digits than its factorization.

133322660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6666142 (or 6666140 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 133322660 is about 11546.5432056525. The cubic root of 133322660 is about 510.8593227719.

Adding to 133322660 its reverse (66223331), we get a palindrome (199545991).

The spelling of 133322660 in words is "one hundred thirty-three million, three hundred twenty-two thousand, six hundred sixty".