240143 has 8 divisors (see below), whose sum is σ = 256608. Its totient is φ = 224224.

The previous prime is 240139. The next prime is 240151. The reversal of 240143 is 341042.

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

It is a cyclic number.

It is not a de Polignac number, because 240143 - 2² = 240139 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 (240113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1121 + ... + 1317.

It is an arithmetic number, because the mean of its divisors is an integer number (32076).

2²⁴⁰¹⁴³ is an apocalyptic number.

240143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

240143 is a deficient number, since it is larger than the sum of its proper divisors (16465).

240143 is a wasteful number, since it uses less digits than its factorization.

240143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 240143 is about 490.0438755867. The cubic root of 240143 is about 62.1569902865.

Adding to 240143 its reverse (341042), we get a palindrome (581185).

It can be divided in two parts, 240 and 143, that added together give a palindrome (383).

The spelling of 240143 in words is "two hundred forty thousand, one hundred forty-three", and thus it is an iban number.