143889222 has 16 divisors (see below), whose sum is σ = 290045952. Its totient is φ = 47585160.

The previous prime is 143889217. The next prime is 143889269. The reversal of 143889222 is 222988341.

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, 93654 + ... + 95177.

It is an arithmetic number, because the mean of its divisors is an integer number (18127872).

Almost surely, 2^143889222 is an apocalyptic number.

143889222 is an abundant number, since it is smaller than the sum of its proper divisors (146156730).

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

143889222 is a wasteful number, since it uses less digits than its factorization.

143889222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188963.

The product of its digits is 55296, while the sum is 39.

The square root of 143889222 is about 11995.3833619439. The cubic root of 143889222 is about 524.0138367265.

The spelling of 143889222 in words is "one hundred forty-three million, eight hundred eighty-nine thousand, two hundred twenty-two".