89142 has 16 divisors (see below), whose sum is σ = 181440. Its totient is φ = 29192.

The previous prime is 89137. The next prime is 89153. The reversal of 89142 is 24198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409 + ... + 587.

It is an arithmetic number, because the mean of its divisors is an integer number (11340).

2⁸⁹¹⁴² is an apocalyptic number.

89142 is an abundant number, since it is smaller than the sum of its proper divisors (92298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90720).

89142 is a wasteful number, since it uses less digits than its factorization.

89142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267.

The product of its digits is 576, while the sum is 24.

The square root of 89142 is about 298.5665754903. The cubic root of 89142 is about 44.6711834248.

It can be divided in two parts, 89 and 142, that added together give a triangular number (231 = T₂₁).

The spelling of 89142 in words is "eighty-nine thousand, one hundred forty-two".