140234143 has 8 divisors (see below), whose sum is σ = 160775712. Its totient is φ = 119819616.

The previous prime is 140234123. The next prime is 140234183. The reversal of 140234143 is 341432041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140234143 - 2⁹ = 140233631 is a prime.

It is a super-2 number, since 2×140234143² = 39331229725888898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140234113) 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 in 7 ways as a sum of consecutive naturals, for example, 29380 + ... + 33817.

It is an arithmetic number, because the mean of its divisors is an integer number (20096964).

Almost surely, 2^140234143 is an apocalyptic number.

140234143 is a deficient number, since it is larger than the sum of its proper divisors (20541569).

140234143 is an equidigital number, since it uses as much as digits as its factorization.

140234143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63521.

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

The square root of 140234143 is about 11842.0497803379. The cubic root of 140234143 is about 519.5387218506.

Adding to 140234143 its reverse (341432041), we get a palindrome (481666184).

The spelling of 140234143 in words is "one hundred forty million, two hundred thirty-four thousand, one hundred forty-three".