133530322 has 4 divisors (see below), whose sum is σ = 200295486. Its totient is φ = 66765160.

The previous prime is 133530311. The next prime is 133530323. The reversal of 133530322 is 223035331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 89851441 + 43678881 = 9479^2 + 6609^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133530293 and 133530302.

It is not an unprimeable number, because it can be changed into a prime (133530323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33382579 + ... + 33382582.

Almost surely, 2^133530322 is an apocalyptic number.

133530322 is a deficient number, since it is larger than the sum of its proper divisors (66765164).

133530322 is an equidigital number, since it uses as much as digits as its factorization.

133530322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66765163.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 133530322 is about 11555.5320950617. The cubic root of 133530322 is about 511.1244215850.

Adding to 133530322 its reverse (223035331), we get a palindrome (356565653).

The spelling of 133530322 in words is "one hundred thirty-three million, five hundred thirty thousand, three hundred twenty-two".