143030213 has 4 divisors (see below), whose sum is σ = 143169708. Its totient is φ = 142890720.

The previous prime is 143030171. The next prime is 143030257. The reversal of 143030213 is 312030341.

It is a happy number.

143030213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 101646724 + 41383489 = 10082^2 + 6433^2 .

It is a cyclic number.

It is not a de Polignac number, because 143030213 - 2⁶ = 143030149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 143030191 and 143030200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143030273) 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, 68198 + ... + 70263.

It is an arithmetic number, because the mean of its divisors is an integer number (35792427).

Almost surely, 2^143030213 is an apocalyptic number.

It is an amenable number.

143030213 is a deficient number, since it is larger than the sum of its proper divisors (139495).

143030213 is a wasteful number, since it uses less digits than its factorization.

143030213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139494.

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

The square root of 143030213 is about 11959.5239453751. The cubic root of 143030213 is about 522.9689789019.

Adding to 143030213 its reverse (312030341), we get a palindrome (455060554).

The spelling of 143030213 in words is "one hundred forty-three million, thirty thousand, two hundred thirteen".