143030312 has 16 divisors (see below), whose sum is σ = 269336340. Its totient is φ = 71207296.

The previous prime is 143030273. The next prime is 143030317. The reversal of 143030312 is 213030341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 135815716 + 7214596 = 11654^2 + 2686^2 .

It is a super-3 number, since 3×143030312³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (143030317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36503 + ... + 40230.

Almost surely, 2^143030312 is an apocalyptic number.

It is an amenable number.

143030312 is a deficient number, since it is larger than the sum of its proper divisors (126306028).

143030312 is a wasteful number, since it uses less digits than its factorization.

143030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76972 (or 76968 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 143030312 is about 11959.5280843351. The cubic root of 143030312 is about 522.9690995615.

Adding to 143030312 its reverse (213030341), we get a palindrome (356060653).

The spelling of 143030312 in words is "one hundred forty-three million, thirty thousand, three hundred twelve".