232220133 has 6 divisors (see below), whose sum is σ = 335429094. Its totient is φ = 154813416.

The previous prime is 232220123. The next prime is 232220143. The reversal of 232220133 is 331022232.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (232220123) and next prime (232220143).

It can be written as a sum of positive squares in only one way, i.e., 208571364 + 23648769 = 14442^2 + 4863^2 .

It is not a de Polignac number, because 232220133 - 2⁸ = 232219877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232220123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12901110 + ... + 12901127.

It is an arithmetic number, because the mean of its divisors is an integer number (55904849).

Almost surely, 2^232220133 is an apocalyptic number.

It is an amenable number.

232220133 is a deficient number, since it is larger than the sum of its proper divisors (103208961).

232220133 is a wasteful number, since it uses less digits than its factorization.

232220133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25802243 (or 25802240 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 232220133 is about 15238.7707181387. The cubic root of 232220133 is about 614.6576480465.

Adding to 232220133 its reverse (331022232), we get a palindrome (563242365).

The spelling of 232220133 in words is "two hundred thirty-two million, two hundred twenty thousand, one hundred thirty-three".