143222347 has 2 divisors, whose sum is σ = 143222348. Its totient is φ = 143222346.

The previous prime is 143222333. The next prime is 143222371. The reversal of 143222347 is 743222341.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143222347 is a prime.

It is not a weakly prime, because it can be changed into another prime (143222147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71611173 + 71611174.

It is an arithmetic number, because the mean of its divisors is an integer number (71611174).

Almost surely, 2^143222347 is an apocalyptic number.

143222347 is a deficient number, since it is larger than the sum of its proper divisors (1).

143222347 is an equidigital number, since it uses as much as digits as its factorization.

143222347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 28.

The square root of 143222347 is about 11967.5539271816. The cubic root of 143222347 is about 523.2030440485.

Adding to 143222347 its reverse (743222341), we get a palindrome (886444688).

The spelling of 143222347 in words is "one hundred forty-three million, two hundred twenty-two thousand, three hundred forty-seven".