89145143 has 2 divisors, whose sum is σ = 89145144. Its totient is φ = 89145142.

The previous prime is 89145139. The next prime is 89145151. The reversal of 89145143 is 34154198.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89145143 - 2² = 89145139 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89145103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44572571 + 44572572.

It is an arithmetic number, because the mean of its divisors is an integer number (44572572).

Almost surely, 2^89145143 is an apocalyptic number.

89145143 is a deficient number, since it is larger than the sum of its proper divisors (1).

89145143 is an equidigital number, since it uses as much as digits as its factorization.

89145143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 89145143 is about 9441.6705619292. The cubic root of 89145143 is about 446.7170842943.

The spelling of 89145143 in words is "eighty-nine million, one hundred forty-five thousand, one hundred forty-three".