143225213 has 2 divisors, whose sum is σ = 143225214. Its totient is φ = 143225212.

The previous prime is 143225189. The next prime is 143225219. The reversal of 143225213 is 312522341.

143225213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79512889 + 63712324 = 8917^2 + 7982^2 .

It is a cyclic number.

It is not a de Polignac number, because 143225213 - 2⁶ = 143225149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_8084021 and since 143225213 and 8084021 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143225219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71612606 + 71612607.

It is an arithmetic number, because the mean of its divisors is an integer number (71612607).

Almost surely, 2^143225213 is an apocalyptic number.

It is an amenable number.

143225213 is a deficient number, since it is larger than the sum of its proper divisors (1).

143225213 is an equidigital number, since it uses as much as digits as its factorization.

143225213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 143225213 is about 11967.6736670081. The cubic root of 143225213 is about 523.2065339367.

Adding to 143225213 its reverse (312522341), we get a palindrome (455747554).

The spelling of 143225213 in words is "one hundred forty-three million, two hundred twenty-five thousand, two hundred thirteen".