143020349 has 2 divisors, whose sum is σ = 143020350. Its totient is φ = 143020348.

The previous prime is 143020321. The next prime is 143020357. The reversal of 143020349 is 943020341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86620249 + 56400100 = 9307^2 + 7510^2 .

It is a cyclic number.

It is not a de Polignac number, because 143020349 - 2⁸ = 143020093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143020369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71510174 + 71510175.

It is an arithmetic number, because the mean of its divisors is an integer number (71510175).

Almost surely, 2^143020349 is an apocalyptic number.

It is an amenable number.

143020349 is a deficient number, since it is larger than the sum of its proper divisors (1).

143020349 is an equidigital number, since it uses as much as digits as its factorization.

143020349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 143020349 is about 11959.1115472680. Note that the first 3 decimals coincide. The cubic root of 143020349 is about 522.9569565362.

The spelling of 143020349 in words is "one hundred forty-three million, twenty thousand, three hundred forty-nine".