130289 has 4 divisors (see below), whose sum is σ = 131556. Its totient is φ = 129024.

The previous prime is 130279. The next prime is 130303. The reversal of 130289 is 982031.

130289 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982031 = 23 ⋅42697.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 87025 = 208^2 + 295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464 + ... + 689.

It is an arithmetic number, because the mean of its divisors is an integer number (32889).

2¹³⁰²⁸⁹ is an apocalyptic number.

It is an amenable number.

130289 is a deficient number, since it is larger than the sum of its proper divisors (1267).

130289 is a wasteful number, since it uses less digits than its factorization.

130289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 130289 is about 360.9556759493. The cubic root of 130289 is about 50.6954812629.

The spelling of 130289 in words is "one hundred thirty thousand, two hundred eighty-nine".