143080321 has 2 divisors, whose sum is σ = 143080322. Its totient is φ = 143080320.

The previous prime is 143080271. The next prime is 143080339. The reversal of 143080321 is 123080341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101284096 + 41796225 = 10064^2 + 6465^2 .

It is a cyclic number.

It is not a de Polignac number, because 143080321 - 2⁷ = 143080193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143080292 and 143080301.

It is not a weakly prime, because it can be changed into another prime (143080121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71540160 + 71540161.

It is an arithmetic number, because the mean of its divisors is an integer number (71540161).

Almost surely, 2^143080321 is an apocalyptic number.

It is an amenable number.

143080321 is a deficient number, since it is larger than the sum of its proper divisors (1).

143080321 is an equidigital number, since it uses as much as digits as its factorization.

143080321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 143080321 is about 11961.6186613685. The cubic root of 143080321 is about 523.0300426205.

The spelling of 143080321 in words is "one hundred forty-three million, eighty thousand, three hundred twenty-one".