133332231 has 8 divisors (see below), whose sum is σ = 178349184. Its totient is φ = 88601720.

The previous prime is 133332229. The next prime is 133332239. The reversal of 133332231 is 132233331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133332231 - 2¹ = 133332229 is a prime.

It is a super-2 number, since 2×133332231² = 35554967646874722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133332198 and 133332207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133332239) 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 7 ways as a sum of consecutive naturals, for example, 70521 + ... + 72386.

It is an arithmetic number, because the mean of its divisors is an integer number (22293648).

Almost surely, 2^133332231 is an apocalyptic number.

133332231 is a deficient number, since it is larger than the sum of its proper divisors (45016953).

133332231 is a wasteful number, since it uses less digits than its factorization.

133332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143221.

The product of its digits is 972, while the sum is 21.

The square root of 133332231 is about 11546.9576512604. The cubic root of 133332231 is about 510.8715470444.

Adding to 133332231 its reverse (132233331), we get a palindrome (265565562).

The spelling of 133332231 in words is "one hundred thirty-three million, three hundred thirty-two thousand, two hundred thirty-one".