143226229 has 2 divisors, whose sum is σ = 143226230. Its totient is φ = 143226228.

The previous prime is 143226197. The next prime is 143226277. The reversal of 143226229 is 922622341.

143226229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135256900 + 7969329 = 11630^2 + 2823^2 .

It is a cyclic number.

It is not a de Polignac number, because 143226229 - 2⁵ = 143226197 is a prime.

It is equal to p_8084083 and since 143226229 and 8084083 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143226229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143227229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71613114 + 71613115.

It is an arithmetic number, because the mean of its divisors is an integer number (71613115).

Almost surely, 2^143226229 is an apocalyptic number.

It is an amenable number.

143226229 is a deficient number, since it is larger than the sum of its proper divisors (1).

143226229 is an equidigital number, since it uses as much as digits as its factorization.

143226229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 143226229 is about 11967.7161146144. The cubic root of 143226229 is about 523.2077710945.

The spelling of 143226229 in words is "one hundred forty-three million, two hundred twenty-six thousand, two hundred twenty-nine".