143423312 has 10 divisors (see below), whose sum is σ = 277882698. Its totient is φ = 71711648.

The previous prime is 143423309. The next prime is 143423317. The reversal of 143423312 is 213324341.

It can be written as a sum of positive squares in only one way, i.e., 141039376 + 2383936 = 11876^2 + 1544^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143423317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4481963 + ... + 4481994.

Almost surely, 2^143423312 is an apocalyptic number.

It is an amenable number.

143423312 is a deficient number, since it is larger than the sum of its proper divisors (134459386).

143423312 is an equidigital number, since it uses as much as digits as its factorization.

143423312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8963965 (or 8963959 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 143423312 is about 11975.9472276726. The cubic root of 143423312 is about 523.4476435851.

Adding to 143423312 its reverse (213324341), we get a palindrome (356747653).

The spelling of 143423312 in words is "one hundred forty-three million, four hundred twenty-three thousand, three hundred twelve".