143072849 has 2 divisors, whose sum is σ = 143072850. Its totient is φ = 143072848.

The previous prime is 143072819. The next prime is 143072861. The reversal of 143072849 is 948270341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94867600 + 48205249 = 9740^2 + 6943^2 .

It is an emirp because it is prime and its reverse (948270341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143072849 - 2⁸ = 143072593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143072819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71536424 + 71536425.

It is an arithmetic number, because the mean of its divisors is an integer number (71536425).

Almost surely, 2^143072849 is an apocalyptic number.

It is an amenable number.

143072849 is a deficient number, since it is larger than the sum of its proper divisors (1).

143072849 is an equidigital number, since it uses as much as digits as its factorization.

143072849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 143072849 is about 11961.3063249797. The cubic root of 143072849 is about 523.0209378313.

The spelling of 143072849 in words is "one hundred forty-three million, seventy-two thousand, eight hundred forty-nine".