143220412 has 24 divisors (see below), whose sum is σ = 253062656. Its totient is φ = 70921008.

The previous prime is 143220397. The next prime is 143220431. The reversal of 143220412 is 214022341.

143220412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 143220412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273583 + ... + 274105.

Almost surely, 2^143220412 is an apocalyptic number.

It is an amenable number.

143220412 is a deficient number, since it is larger than the sum of its proper divisors (109842244).

143220412 is a wasteful number, since it uses less digits than its factorization.

143220412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 143220412 is about 11967.4730833205. The cubic root of 143220412 is about 523.2006877997.

Adding to 143220412 its reverse (214022341), we get a palindrome (357242753).

The spelling of 143220412 in words is "one hundred forty-three million, two hundred twenty thousand, four hundred twelve".