232756221 has 16 divisors (see below), whose sum is σ = 318927168. Its totient is φ = 150902400.

The previous prime is 232756211. The next prime is 232756243. The reversal of 232756221 is 122657232.

It is not a de Polignac number, because 232756221 - 2¹¹ = 232754173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232756201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37855 + ... + 43571.

It is an arithmetic number, because the mean of its divisors is an integer number (19932948).

Almost surely, 2^232756221 is an apocalyptic number.

It is an amenable number.

232756221 is a deficient number, since it is larger than the sum of its proper divisors (86170947).

232756221 is a wasteful number, since it uses less digits than its factorization.

232756221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6092.

The product of its digits is 10080, while the sum is 30.

The square root of 232756221 is about 15256.3501860701. The cubic root of 232756221 is about 615.1302705069.

The spelling of 232756221 in words is "two hundred thirty-two million, seven hundred fifty-six thousand, two hundred twenty-one".