143420222 has 16 divisors (see below), whose sum is σ = 240147072. Its totient is φ = 63674520.

The previous prime is 143420201. The next prime is 143420239. The reversal of 143420222 is 222024341.

143420222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 143420194 and 143420203.

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, 74858 + ... + 76749.

It is an arithmetic number, because the mean of its divisors is an integer number (15009192).

Almost surely, 2^143420222 is an apocalyptic number.

143420222 is a deficient number, since it is larger than the sum of its proper divisors (96726850).

143420222 is a wasteful number, since it uses less digits than its factorization.

143420222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151663.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 143420222 is about 11975.8182183933. The cubic root of 143420222 is about 523.4438843988.

Adding to 143420222 its reverse (222024341), we get a palindrome (365444563).

The spelling of 143420222 in words is "one hundred forty-three million, four hundred twenty thousand, two hundred twenty-two".