133530022 has 4 divisors (see below), whose sum is σ = 200295036. Its totient is φ = 66765010.

The previous prime is 133530013. The next prime is 133530029. The reversal of 133530022 is 220035331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220035331 = 673 ⋅326947.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133530029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33382504 + ... + 33382507.

It is an arithmetic number, because the mean of its divisors is an integer number (50073759).

Almost surely, 2^133530022 is an apocalyptic number.

133530022 is a deficient number, since it is larger than the sum of its proper divisors (66765014).

133530022 is an equidigital number, since it uses as much as digits as its factorization.

133530022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66765013.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 133530022 is about 11555.5191142588. The cubic root of 133530022 is about 511.1240388069.

Adding to 133530022 its reverse (220035331), we get a palindrome (353565353).

The spelling of 133530022 in words is "one hundred thirty-three million, five hundred thirty thousand, twenty-two".