438143 has 2 divisors, whose sum is σ = 438144. Its totient is φ = 438142.

The previous prime is 438133. The next prime is 438169. The reversal of 438143 is 341834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438143 - 2¹⁶ = 372607 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (438133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219071 + 219072.

It is an arithmetic number, because the mean of its divisors is an integer number (219072).

2⁴³⁸¹⁴³ is an apocalyptic number.

438143 is a deficient number, since it is larger than the sum of its proper divisors (1).

438143 is an equidigital number, since it uses as much as digits as its factorization.

438143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 438143 is about 661.9237116164. The cubic root of 438143 is about 75.9518970766.

Adding to 438143 its reverse (341834), we get a palindrome (779977).

The spelling of 438143 in words is "four hundred thirty-eight thousand, one hundred forty-three".