143224297 has 2 divisors, whose sum is σ = 143224298. Its totient is φ = 143224296.

The previous prime is 143224273. The next prime is 143224331. The reversal of 143224297 is 792422341.

143224297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (143224331) can be obtained adding 143224297 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123010281 + 20214016 = 11091^2 + 4496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143224297 is a prime.

It is a super-2 number, since 2×143224297² = 41026398502288418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143224897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71612148 + 71612149.

It is an arithmetic number, because the mean of its divisors is an integer number (71612149).

Almost surely, 2^143224297 is an apocalyptic number.

It is an amenable number.

143224297 is a deficient number, since it is larger than the sum of its proper divisors (1).

143224297 is an equidigital number, since it uses as much as digits as its factorization.

143224297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 143224297 is about 11967.6353971869. The cubic root of 143224297 is about 523.2054185413.

The spelling of 143224297 in words is "one hundred forty-three million, two hundred twenty-four thousand, two hundred ninety-seven".