143228422 has 16 divisors (see below), whose sum is σ = 229017600. Its totient is φ = 66984840.

The previous prime is 143228389. The next prime is 143228447. The reversal of 143228422 is 224822341.

It is a super-2 number, since 2×143228422² = 41028761737220168, which contains 22 as substring.

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, 20854 + ... + 26857.

It is an arithmetic number, because the mean of its divisors is an integer number (14313600).

Almost surely, 2^143228422 is an apocalyptic number.

143228422 is a deficient number, since it is larger than the sum of its proper divisors (85789178).

143228422 is a wasteful number, since it uses less digits than its factorization.

143228422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47811.

The product of its digits is 6144, while the sum is 28.

The square root of 143228422 is about 11967.8077357551. The cubic root of 143228422 is about 523.2104414359.

The spelling of 143228422 in words is "one hundred forty-three million, two hundred twenty-eight thousand, four hundred twenty-two".