43430143 has 4 divisors (see below), whose sum is σ = 45715960. Its totient is φ = 41144328.

The previous prime is 43430113. The next prime is 43430147. The reversal of 43430143 is 34103434.

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

It is a cyclic number.

It is not a de Polignac number, because 43430143 - 2¹³ = 43421951 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43430147) 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, 1142880 + ... + 1142917.

It is an arithmetic number, because the mean of its divisors is an integer number (11428990).

Almost surely, 2^43430143 is an apocalyptic number.

43430143 is a deficient number, since it is larger than the sum of its proper divisors (2285817).

43430143 is a wasteful number, since it uses less digits than its factorization.

43430143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285816.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 43430143 is about 6590.1550057643. The cubic root of 43430143 is about 351.5041200035.

Adding to 43430143 its reverse (34103434), we get a palindrome (77533577).

The spelling of 43430143 in words is "forty-three million, four hundred thirty thousand, one hundred forty-three".