143221234 has 16 divisors (see below), whose sum is σ = 232100568. Its totient is φ = 65889792.

The previous prime is 143221219. The next prime is 143221237. The reversal of 143221234 is 432122341.

It can be written as a sum of positive squares in 4 ways, for example, as 26040609 + 117180625 = 5103^2 + 10825^2 .

It is not an unprimeable number, because it can be changed into a prime (143221237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447 + ... + 16930.

Almost surely, 2^143221234 is an apocalyptic number.

143221234 is a deficient number, since it is larger than the sum of its proper divisors (88879334).

143221234 is a wasteful number, since it uses less digits than its factorization.

143221234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17709.

The product of its digits is 1152, while the sum is 22.

The square root of 143221234 is about 11967.5074263608. The cubic root of 143221234 is about 523.2016887514.

Adding to 143221234 its reverse (432122341), we get a palindrome (575343575).

The spelling of 143221234 in words is "one hundred forty-three million, two hundred twenty-one thousand, two hundred thirty-four".