43143741 has 6 divisors (see below), whose sum is σ = 62318750. Its totient is φ = 28762488.

The previous prime is 43143707. The next prime is 43143769. The reversal of 43143741 is 14734134.

It can be written as a sum of positive squares in only one way, i.e., 38081241 + 5062500 = 6171^2 + 2250^2 .

It is not a de Polignac number, because 43143741 - 2⁷ = 43143613 is a prime.

It is a super-2 number, since 2×43143741² = 3722764774950162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43143241) 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, 2396866 + ... + 2396883.

Almost surely, 2^43143741 is an apocalyptic number.

It is an amenable number.

43143741 is a deficient number, since it is larger than the sum of its proper divisors (19175009).

43143741 is a wasteful number, since it uses less digits than its factorization.

43143741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793755 (or 4793752 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 43143741 is about 6568.3895286440. The cubic root of 43143741 is about 350.7297454600.

Adding to 43143741 its reverse (14734134), we get a palindrome (57877875).

The spelling of 43143741 in words is "forty-three million, one hundred forty-three thousand, seven hundred forty-one".