Search a number
-
+
233143 is a prime number
BaseRepresentation
bin111000111010110111
3102211210221
4320322313
524430033
64555211
71660501
oct707267
9384727
10233143
1114a189
12b2b07
1382171
1460d71
154912d
hex38eb7

233143 has 2 divisors, whose sum is σ = 233144. Its totient is φ = 233142.

The previous prime is 233141. The next prime is 233159. The reversal of 233143 is 341332.

It is an a-pointer prime, because the next prime (233159) can be obtained adding 233143 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 233143 - 21 = 233141 is a prime.

It is a super-3 number, since 3×2331433 = 38017923833325621, which contains 333 as substring.

Together with 233141, it forms a pair of twin primes.

233143 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116571 + 116572.

It is an arithmetic number, because the mean of its divisors is an integer number (116572).

2233143 is an apocalyptic number.

233143 is a deficient number, since it is larger than the sum of its proper divisors (1).

233143 is an equidigital number, since it uses as much as digits as its factorization.

233143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 16.

The square root of 233143 is about 482.8488376293. The cubic root of 233143 is about 61.5470809641.

Adding to 233143 its reverse (341332), we get a palindrome (574475).

The spelling of 233143 in words is "two hundred thirty-three thousand, one hundred forty-three".