229757143 has 16 divisors (see below), whose sum is σ = 298907136. Its totient is φ = 171246240.

The previous prime is 229757119. The next prime is 229757191. The reversal of 229757143 is 341757922.

It is a de Polignac number, because none of the positive numbers 2^k-229757143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229757096 and 229757105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229757243) 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, 63096 + ... + 66637.

It is an arithmetic number, because the mean of its divisors is an integer number (18681696).

Almost surely, 2^229757143 is an apocalyptic number.

229757143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

229757143 is a deficient number, since it is larger than the sum of its proper divisors (69149993).

229757143 is a wasteful number, since it uses less digits than its factorization.

229757143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129774.

The product of its digits is 105840, while the sum is 40.

The square root of 229757143 is about 15157.7420152211. The cubic root of 229757143 is about 612.4768442169.

The spelling of 229757143 in words is "two hundred twenty-nine million, seven hundred fifty-seven thousand, one hundred forty-three".