143424242 has 16 divisors (see below), whose sum is σ = 233983512. Its totient is φ = 65539200.

The previous prime is 143424241. The next prime is 143424269. The reversal of 143424242 is 242424341.

It is a happy number.

143424242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 135745801 + 7678441 = 11651^2 + 2771^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (143424241) 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, 24683 + ... + 29934.

Almost surely, 2^143424242 is an apocalyptic number.

143424242 is a deficient number, since it is larger than the sum of its proper divisors (90559270).

143424242 is a wasteful number, since it uses less digits than its factorization.

143424242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54733.

The product of its digits is 6144, while the sum is 26.

The square root of 143424242 is about 11975.9860554361. The cubic root of 143424242 is about 523.4487749801.

Adding to 143424242 its reverse (242424341), we get a palindrome (385848583).

Subtracting 143424242 from its reverse (242424341), we obtain a palindrome (99000099).

It can be divided in two parts, 143 and 424242, that multiplied together give a palindrome (60666606).

The spelling of 143424242 in words is "one hundred forty-three million, four hundred twenty-four thousand, two hundred forty-two".