Search a number
-
+
243137 is a prime number
BaseRepresentation
bin111011010111000001
3110100112002
4323113001
530240022
65113345
72031566
oct732701
9410462
10243137
11156744
12b8855
138688b
146486d
154c092
hex3b5c1

243137 has 2 divisors, whose sum is σ = 243138. Its totient is φ = 243136.

The previous prime is 243121. The next prime is 243149. The reversal of 243137 is 731342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141376 + 101761 = 376^2 + 319^2 .

It is a cyclic number.

It is not a de Polignac number, because 243137 - 24 = 243121 is a prime.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121568 + 121569.

It is an arithmetic number, because the mean of its divisors is an integer number (121569).

2243137 is an apocalyptic number.

It is an amenable number.

243137 is a deficient number, since it is larger than the sum of its proper divisors (1).

243137 is an equidigital number, since it uses as much as digits as its factorization.

243137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 20.

The square root of 243137 is about 493.0892414158. The cubic root of 243137 is about 62.4142397099.

Adding to 243137 its reverse (731342), we get a palindrome (974479).

The spelling of 243137 in words is "two hundred forty-three thousand, one hundred thirty-seven".