143222442 has 32 divisors (see below), whose sum is σ = 319140864. Its totient is φ = 42476400.

The previous prime is 143222413. The next prime is 143222473. The reversal of 143222442 is 244222341.

143222442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19984 + ... + 26187.

It is an arithmetic number, because the mean of its divisors is an integer number (9973152).

Almost surely, 2^143222442 is an apocalyptic number.

143222442 is an abundant number, since it is smaller than the sum of its proper divisors (175918422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143222442 is a wasteful number, since it uses less digits than its factorization.

143222442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46234.

The product of its digits is 3072, while the sum is 24.

The square root of 143222442 is about 11967.5578962460. The cubic root of 143222442 is about 523.2031597294.

Adding to 143222442 its reverse (244222341), we get a palindrome (387444783).

The spelling of 143222442 in words is "one hundred forty-three million, two hundred twenty-two thousand, four hundred forty-two".