234140143 has 16 divisors (see below), whose sum is σ = 245877120. Its totient is φ = 222789600.

The previous prime is 234140131. The next prime is 234140177. The reversal of 234140143 is 341041432.

It is a cyclic number.

It is not a de Polignac number, because 234140143 - 2²⁵ = 200585711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234140183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240648 + ... + 241618.

It is an arithmetic number, because the mean of its divisors is an integer number (15367320).

Almost surely, 2^234140143 is an apocalyptic number.

234140143 is a deficient number, since it is larger than the sum of its proper divisors (11736977).

234140143 is an equidigital number, since it uses as much as digits as its factorization.

234140143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 234140143 is about 15301.6385723883. The cubic root of 234140143 is about 616.3470094295.

Adding to 234140143 its reverse (341041432), we get a palindrome (575181575).

The spelling of 234140143 in words is "two hundred thirty-four million, one hundred forty thousand, one hundred forty-three".