289142 has 16 divisors (see below), whose sum is σ = 522240. Its totient is φ = 117288.

The previous prime is 289141. The next prime is 289151. The reversal of 289142 is 241982.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289142.

It is not an unprimeable number, because it can be changed into a prime (289141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278 + ... + 809.

It is an arithmetic number, because the mean of its divisors is an integer number (32640).

2²⁸⁹¹⁴² is an apocalyptic number.

289142 is a deficient number, since it is larger than the sum of its proper divisors (233098).

289142 is a wasteful number, since it uses less digits than its factorization.

289142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115.

The product of its digits is 1152, while the sum is 26.

The square root of 289142 is about 537.7192576057. The cubic root of 289142 is about 66.1257169172.

The spelling of 289142 in words is "two hundred eighty-nine thousand, one hundred forty-two".