143343431 has 16 divisors (see below), whose sum is σ = 179117568. Its totient is φ = 111444000.

The previous prime is 143343419. The next prime is 143343443. The reversal of 143343431 is 134343341.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (143343419) and next prime (143343443).

It is a cyclic number.

It is not a de Polignac number, because 143343431 - 2¹⁴ = 143327047 is a prime.

It is a super-2 number, since 2×143343431² = 41094678421703522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 143343431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143343461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36881 + ... + 40581.

It is an arithmetic number, because the mean of its divisors is an integer number (11194848).

Almost surely, 2^143343431 is an apocalyptic number.

143343431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

143343431 is a deficient number, since it is larger than the sum of its proper divisors (35774137).

143343431 is a wasteful number, since it uses less digits than its factorization.

143343431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222.

The product of its digits is 5184, while the sum is 26.

The square root of 143343431 is about 11972.6117033837. The cubic root of 143343431 is about 523.3504457962.

Adding to 143343431 its reverse (134343341), we get a palindrome (277686772).

The spelling of 143343431 in words is "one hundred forty-three million, three hundred forty-three thousand, four hundred thirty-one".