143343331 has 4 divisors (see below), whose sum is σ = 143397000. Its totient is φ = 143289664.

The previous prime is 143343329. The next prime is 143343397. The reversal of 143343331 is 133343341.

It is a happy number.

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 143343331 - 2¹ = 143343329 is a prime.

It is a super-2 number, since 2×143343331² = 41094621084351122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143343296 and 143343305.

It is not an unprimeable number, because it can be changed into a prime (143343301) 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, 22606 + ... + 28243.

It is an arithmetic number, because the mean of its divisors is an integer number (35849250).

Almost surely, 2^143343331 is an apocalyptic number.

143343331 is a deficient number, since it is larger than the sum of its proper divisors (53669).

143343331 is an equidigital number, since it uses as much as digits as its factorization.

143343331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53668.

The product of its digits is 3888, while the sum is 25.

The square root of 143343331 is about 11972.6075271847. The cubic root of 143343331 is about 523.3503240953.

Adding to 143343331 its reverse (133343341), we get a palindrome (276686672).

The spelling of 143343331 in words is "one hundred forty-three million, three hundred forty-three thousand, three hundred thirty-one".