89142143 has 16 divisors (see below), whose sum is σ = 95827200. Its totient is φ = 82736640.

The previous prime is 89142121. The next prime is 89142149. The reversal of 89142143 is 34124198.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 89142143 - 2¹⁰ = 89141119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89142149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205655 + ... + 206087.

It is an arithmetic number, because the mean of its divisors is an integer number (5989200).

Almost surely, 2^89142143 is an apocalyptic number.

89142143 is a deficient number, since it is larger than the sum of its proper divisors (6685057).

89142143 is a wasteful number, since it uses less digits than its factorization.

89142143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722.

The product of its digits is 6912, while the sum is 32.

The square root of 89142143 is about 9441.5116904021. The cubic root of 89142143 is about 446.7120731172.

It can be divided in two parts, 891 and 42143, that added together give a palindrome (43034).

The spelling of 89142143 in words is "eighty-nine million, one hundred forty-two thousand, one hundred forty-three".