40543143 has 8 divisors (see below), whose sum is σ = 54091248. Its totient is φ = 27011904.

The previous prime is 40543141. The next prime is 40543159. The reversal of 40543143 is 34134504.

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

It is not a de Polignac number, because 40543143 - 2¹ = 40543141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40543141) 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, 3321 + ... + 9597.

It is an arithmetic number, because the mean of its divisors is an integer number (6761406).

Almost surely, 2^40543143 is an apocalyptic number.

40543143 is a deficient number, since it is larger than the sum of its proper divisors (13548105).

40543143 is a wasteful number, since it uses less digits than its factorization.

40543143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8433.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 40543143 is about 6367.3497626564. The cubic root of 40543143 is about 343.5361712364.

Adding to 40543143 its reverse (34134504), we get a palindrome (74677647).

The spelling of 40543143 in words is "forty million, five hundred forty-three thousand, one hundred forty-three".