900143 has 2 divisors, whose sum is σ = 900144. Its totient is φ = 900142.

The previous prime is 900139. The next prime is 900149. The reversal of 900143 is 341009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 900143 - 2² = 900139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450071 + 450072.

It is an arithmetic number, because the mean of its divisors is an integer number (450072).

2⁹⁰⁰¹⁴³ is an apocalyptic number.

900143 is a deficient number, since it is larger than the sum of its proper divisors (1).

900143 is an equidigital number, since it uses as much as digits as its factorization.

900143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 900143 is about 948.7586626745. The cubic root of 900143 is about 96.5540517076.

The spelling of 900143 in words is "nine hundred thousand, one hundred forty-three".