140331143 has 6 divisors (see below), whose sum is σ = 143382696. Its totient is φ = 137343212.

The previous prime is 140331089. The next prime is 140331223. The reversal of 140331143 is 341133041.

It is not a de Polignac number, because 140331143 - 2¹⁰ = 140330119 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 (140331943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29555 + ... + 33972.

It is an arithmetic number, because the mean of its divisors is an integer number (23897116).

Almost surely, 2^140331143 is an apocalyptic number.

140331143 is a deficient number, since it is larger than the sum of its proper divisors (3051553).

140331143 is an frugal number, since it uses more digits than its factorization.

140331143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63621 (or 63574 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 140331143 is about 11846.1446470993. The cubic root of 140331143 is about 519.6584826067.

Adding to 140331143 its reverse (341133041), we get a palindrome (481464184).

The spelling of 140331143 in words is "one hundred forty million, three hundred thirty-one thousand, one hundred forty-three".