10440143 has 4 divisors (see below), whose sum is σ = 11931600. Its totient is φ = 8948688.

The previous prime is 10440127. The next prime is 10440161. The reversal of 10440143 is 34104401.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10440143 - 2⁴ = 10440127 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 (10440103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745718 + ... + 745731.

It is an arithmetic number, because the mean of its divisors is an integer number (2982900).

Almost surely, 2^10440143 is an apocalyptic number.

10440143 is a deficient number, since it is larger than the sum of its proper divisors (1491457).

10440143 is an equidigital number, since it uses as much as digits as its factorization.

10440143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491456.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 10440143 is about 3231.1210128994. The cubic root of 10440143 is about 218.5590608130.

Adding to 10440143 its reverse (34104401), we get a palindrome (44544544).

The spelling of 10440143 in words is "ten million, four hundred forty thousand, one hundred forty-three".