1234140143 has 16 divisors (see below), whose sum is σ = 1347573024. Its totient is φ = 1125504000.

The previous prime is 1234140113. The next prime is 1234140157. The reversal of 1234140143 is 3410414321.

It is a cyclic number.

It is not a de Polignac number, because 1234140143 - 2¹⁶ = 1234074607 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 (1234140113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153971 + ... + 161787.

It is an arithmetic number, because the mean of its divisors is an integer number (84223314).

Almost surely, 2^1234140143 is an apocalyptic number.

1234140143 is a deficient number, since it is larger than the sum of its proper divisors (113432881).

1234140143 is a wasteful number, since it uses less digits than its factorization.

1234140143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8122.

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

The square root of 1234140143 is about 35130.3308125614. The cubic root of 1234140143 is about 1072.6420697723.

Adding to 1234140143 its reverse (3410414321), we get a palindrome (4644554464).

The spelling of 1234140143 in words is "one billion, two hundred thirty-four million, one hundred forty thousand, one hundred forty-three".