143440046 has 16 divisors (see below), whose sum is σ = 221294976. Its totient is φ = 69680736.

The previous prime is 143440043. The next prime is 143440049. The reversal of 143440046 is 640044341.

It is an interprime number because it is at equal distance from previous prime (143440043) and next prime (143440049).

It is a junction number, because it is equal to n+sod(n) for n = 143439997 and 143440024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143440043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90755 + ... + 92321.

It is an arithmetic number, because the mean of its divisors is an integer number (13830936).

Almost surely, 2^143440046 is an apocalyptic number.

143440046 is a deficient number, since it is larger than the sum of its proper divisors (77854930).

143440046 is a wasteful number, since it uses less digits than its factorization.

143440046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2843.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 143440046 is about 11976.6458576682. The cubic root of 143440046 is about 523.4680006482.

Adding to 143440046 its reverse (640044341), we get a palindrome (783484387).

The spelling of 143440046 in words is "one hundred forty-three million, four hundred forty thousand, forty-six".