133322661 has 24 divisors (see below), whose sum is σ = 203430656. Its totient is φ = 84006720.

The previous prime is 133322641. The next prime is 133322669. The reversal of 133322661 is 166223331.

It is a happy number.

It is not a de Polignac number, because 133322661 - 2²³ = 124934053 is a prime.

It is a super-2 number, since 2×133322661² = 35549863872241842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6441 + ... + 17553.

Almost surely, 2^133322661 is an apocalyptic number.

It is an amenable number.

133322661 is a deficient number, since it is larger than the sum of its proper divisors (70107995).

133322661 is a wasteful number, since it uses less digits than its factorization.

133322661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11193 (or 11190 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 133322661 is about 11546.5432489555. The cubic root of 133322661 is about 510.8593240492.

Adding to 133322661 its reverse (166223331), we get a palindrome (299545992).

The spelling of 133322661 in words is "one hundred thirty-three million, three hundred twenty-two thousand, six hundred sixty-one".