140140143 has 72 divisors (see below), whose sum is σ = 252710640. Its totient is φ = 74131200.

The previous prime is 140140111. The next prime is 140140153. The reversal of 140140143 is 341041041.

It is not a de Polignac number, because 140140143 - 2⁵ = 140140111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140140103) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 268723 + ... + 269243.

It is an arithmetic number, because the mean of its divisors is an integer number (3509870).

Almost surely, 2^140140143 is an apocalyptic number.

140140143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140140143 is a deficient number, since it is larger than the sum of its proper divisors (112570497).

140140143 is a wasteful number, since it uses less digits than its factorization.

140140143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 140140143 is about 11838.0802075337. The cubic root of 140140143 is about 519.4226123337.

Adding to 140140143 its reverse (341041041), we get a palindrome (481181184).

The spelling of 140140143 in words is "one hundred forty million, one hundred forty thousand, one hundred forty-three".