240234143 has 2 divisors, whose sum is σ = 240234144. Its totient is φ = 240234142.

The previous prime is 240234133. The next prime is 240234161. The reversal of 240234143 is 341432042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240234143 - 2¹² = 240230047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240234133) 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 as a sum of consecutive naturals, namely, 120117071 + 120117072.

It is an arithmetic number, because the mean of its divisors is an integer number (120117072).

Almost surely, 2^240234143 is an apocalyptic number.

240234143 is a deficient number, since it is larger than the sum of its proper divisors (1).

240234143 is an equidigital number, since it uses as much as digits as its factorization.

240234143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 240234143 is about 15499.4884754304. The cubic root of 240234143 is about 621.6485290449.

Adding to 240234143 its reverse (341432042), we get a palindrome (581666185).

The spelling of 240234143 in words is "two hundred forty million, two hundred thirty-four thousand, one hundred forty-three".