143242441 has 4 divisors (see below), whose sum is σ = 143530000. Its totient is φ = 142954884.

The previous prime is 143242403. The next prime is 143242453. The reversal of 143242441 is 144242341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143242441 - 2⁹ = 143241929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143242471) 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, 143031 + ... + 144028.

It is an arithmetic number, because the mean of its divisors is an integer number (35882500).

Almost surely, 2^143242441 is an apocalyptic number.

It is an amenable number.

143242441 is a deficient number, since it is larger than the sum of its proper divisors (287559).

143242441 is an equidigital number, since it uses as much as digits as its factorization.

143242441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287558.

The product of its digits is 3072, while the sum is 25.

The square root of 143242441 is about 11968.3934176647. The cubic root of 143242441 is about 523.2275112506.

Adding to 143242441 its reverse (144242341), we get a palindrome (287484782).

The spelling of 143242441 in words is "one hundred forty-three million, two hundred forty-two thousand, four hundred forty-one".