143220029 has 2 divisors, whose sum is σ = 143220030. Its totient is φ = 143220028.

The previous prime is 143220023. The next prime is 143220041. The reversal of 143220029 is 920022341.

143220029 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., 104755225 + 38464804 = 10235^2 + 6202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143220029 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 143219986 and 143220013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143220023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71610014 + 71610015.

It is an arithmetic number, because the mean of its divisors is an integer number (71610015).

Almost surely, 2^143220029 is an apocalyptic number.

It is an amenable number.

143220029 is a deficient number, since it is larger than the sum of its proper divisors (1).

143220029 is an equidigital number, since it uses as much as digits as its factorization.

143220029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 143220029 is about 11967.4570816026. The cubic root of 143220029 is about 523.2002214182.

The spelling of 143220029 in words is "one hundred forty-three million, two hundred twenty thousand, twenty-nine".