143424231 has 8 divisors (see below), whose sum is σ = 192608640. Its totient is φ = 94927992.

The previous prime is 143424187. The next prime is 143424241. The reversal of 143424231 is 132424341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143424231 - 2¹⁸ = 143162087 is a prime.

It is a super-2 number, since 2×143424231² = 41141020075882722, which contains 22 as substring.

It is a congruent number.

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, 171555 + ... + 172388.

It is an arithmetic number, because the mean of its divisors is an integer number (24076080).

Almost surely, 2^143424231 is an apocalyptic number.

143424231 is a deficient number, since it is larger than the sum of its proper divisors (49184409).

143424231 is a wasteful number, since it uses less digits than its factorization.

143424231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344085.

The product of its digits is 2304, while the sum is 24.

The square root of 143424231 is about 11975.9855961837. The cubic root of 143424231 is about 523.4487615981.

Adding to 143424231 its reverse (132424341), we get a palindrome (275848572).

The spelling of 143424231 in words is "one hundred forty-three million, four hundred twenty-four thousand, two hundred thirty-one".