143446001 has 2 divisors, whose sum is σ = 143446002. Its totient is φ = 143446000.

The previous prime is 143445859. The next prime is 143446007. The reversal of 143446001 is 100644341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97219600 + 46226401 = 9860^2 + 6799^2 .

It is a cyclic number.

It is not a de Polignac number, because 143446001 - 2¹⁴ = 143429617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (143446007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71723000 + 71723001.

It is an arithmetic number, because the mean of its divisors is an integer number (71723001).

Almost surely, 2^143446001 is an apocalyptic number.

It is an amenable number.

143446001 is a deficient number, since it is larger than the sum of its proper divisors (1).

143446001 is an equidigital number, since it uses as much as digits as its factorization.

143446001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 143446001 is about 11976.8944639251. The cubic root of 143446001 is about 523.4752445778.

The spelling of 143446001 in words is "one hundred forty-three million, four hundred forty-six thousand, one".