143643412 has 24 divisors (see below), whose sum is σ = 276952032. Its totient is φ = 64644000.

The previous prime is 143643407. The next prime is 143643427. The reversal of 143643412 is 214346341.

It is a super-2 number, since 2×143643412² = 41266859622003488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11718 + ... + 20605.

It is an arithmetic number, because the mean of its divisors is an integer number (11539668).

Almost surely, 2^143643412 is an apocalyptic number.

It is an amenable number.

143643412 is a deficient number, since it is larger than the sum of its proper divisors (133308620).

143643412 is a wasteful number, since it uses less digits than its factorization.

143643412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32439 (or 32437 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 143643412 is about 11985.1329571265. The cubic root of 143643412 is about 523.7152707932.

Adding to 143643412 its reverse (214346341), we get a palindrome (357989753).

The spelling of 143643412 in words is "one hundred forty-three million, six hundred forty-three thousand, four hundred twelve".