260144089 has 4 divisors (see below), whose sum is σ = 260176356. Its totient is φ = 260111824.

The previous prime is 260144021. The next prime is 260144119. The reversal of 260144089 is 980441062.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 63920025 + 196224064 = 7995^2 + 14008^2 .

It is a cyclic number.

It is not a de Polignac number, because 260144089 - 2⁹ = 260143577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260144189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7527 + ... + 24019.

It is an arithmetic number, because the mean of its divisors is an integer number (65044089).

Almost surely, 2^260144089 is an apocalyptic number.

It is an amenable number.

260144089 is a deficient number, since it is larger than the sum of its proper divisors (32267).

260144089 is a wasteful number, since it uses less digits than its factorization.

260144089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32266.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 260144089 is about 16128.9828879567. The cubic root of 260144089 is about 638.3683117870.

It can be divided in two parts, 26014 and 4089, that added together give a palindrome (30103).

The spelling of 260144089 in words is "two hundred sixty million, one hundred forty-four thousand, eighty-nine".