232145216 has 14 divisors (see below), whose sum is σ = 460663290. Its totient is φ = 116072576.

The previous prime is 232145209. The next prime is 232145219. The reversal of 232145216 is 612541232.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 141514816 + 90630400 = 11896^2 + 9520^2 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232145219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1813571 + ... + 1813698.

Almost surely, 2^232145216 is an apocalyptic number.

It is an amenable number.

232145216 is a deficient number, since it is larger than the sum of its proper divisors (228518074).

232145216 is an equidigital number, since it uses as much as digits as its factorization.

232145216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627281 (or 3627271 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 232145216 is about 15236.3124147544. The cubic root of 232145216 is about 614.5915422941.

Adding to 232145216 its reverse (612541232), we get a palindrome (844686448).

The spelling of 232145216 in words is "two hundred thirty-two million, one hundred forty-five thousand, two hundred sixteen".