143442227 has 2 divisors, whose sum is σ = 143442228. Its totient is φ = 143442226.

The previous prime is 143442203. The next prime is 143442251. The reversal of 143442227 is 722244341.

It is a balanced prime because it is at equal distance from previous prime (143442203) and next prime (143442251).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143442227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143442227.

It is not a weakly prime, because it can be changed into another prime (143442287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71721113 + 71721114.

It is an arithmetic number, because the mean of its divisors is an integer number (71721114).

Almost surely, 2^143442227 is an apocalyptic number.

143442227 is a deficient number, since it is larger than the sum of its proper divisors (1).

143442227 is an equidigital number, since it uses as much as digits as its factorization.

143442227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 29.

The square root of 143442227 is about 11976.7369095259. The cubic root of 143442227 is about 523.4706537379.

Adding to 143442227 its reverse (722244341), we get a palindrome (865686568).

The spelling of 143442227 in words is "one hundred forty-three million, four hundred forty-two thousand, two hundred twenty-seven".