229321143 has 24 divisors (see below), whose sum is σ = 356490576. Its totient is φ = 141523200.

The previous prime is 229321139. The next prime is 229321171. The reversal of 229321143 is 341123922.

It is a happy number.

It is not a de Polignac number, because 229321143 - 2² = 229321139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229321643) 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 23 ways as a sum of consecutive naturals, for example, 2953 + ... + 21618.

It is an arithmetic number, because the mean of its divisors is an integer number (14853774).

Almost surely, 2^229321143 is an apocalyptic number.

229321143 is a deficient number, since it is larger than the sum of its proper divisors (127169433).

229321143 is a wasteful number, since it uses less digits than its factorization.

229321143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24655 (or 24652 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 229321143 is about 15143.3530963258. The cubic root of 229321143 is about 612.0891754586.

It can be divided in two parts, 2293 and 21143, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 229321143 in words is "two hundred twenty-nine million, three hundred twenty-one thousand, one hundred forty-three".