133231322 has 32 divisors (see below), whose sum is σ = 234714240. Its totient is φ = 55540800.

The previous prime is 133231313. The next prime is 133231327. The reversal of 133231322 is 223132331.

It is a junction number, because it is equal to n+sod(n) for n = 133231294 and 133231303.

It is not an unprimeable number, because it can be changed into a prime (133231327) 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 15 ways as a sum of consecutive naturals, for example, 82628 + ... + 84224.

It is an arithmetic number, because the mean of its divisors is an integer number (7334820).

Almost surely, 2^133231322 is an apocalyptic number.

133231322 is a deficient number, since it is larger than the sum of its proper divisors (101482918).

133231322 is a wasteful number, since it uses less digits than its factorization.

133231322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766.

The product of its digits is 648, while the sum is 20.

The square root of 133231322 is about 11542.5873182749. The cubic root of 133231322 is about 510.7426346098.

Adding to 133231322 its reverse (223132331), we get a palindrome (356363653).

The spelling of 133231322 in words is "one hundred thirty-three million, two hundred thirty-one thousand, three hundred twenty-two".