450000143 has 2 divisors, whose sum is σ = 450000144. Its totient is φ = 450000142.

The previous prime is 450000121. The next prime is 450000181. The reversal of 450000143 is 341000054.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450000143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (450000113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225000071 + 225000072.

It is an arithmetic number, because the mean of its divisors is an integer number (225000072).

Almost surely, 2^450000143 is an apocalyptic number.

450000143 is a deficient number, since it is larger than the sum of its proper divisors (1).

450000143 is an equidigital number, since it uses as much as digits as its factorization.

450000143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 450000143 is about 21213.2068061385. The cubic root of 450000143 is about 766.3095135656.

Adding to 450000143 its reverse (341000054), we get a palindrome (791000197).

The spelling of 450000143 in words is "four hundred fifty million, one hundred forty-three", and thus it is an aban number.