289134469 has 4 divisors (see below), whose sum is σ = 311375596. Its totient is φ = 266893344.

The previous prime is 289134431. The next prime is 289134473. The reversal of 289134469 is 964431982.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183250369 + 105884100 = 13537^2 + 10290^2 .

It is a cyclic number.

It is not a de Polignac number, because 289134469 - 2¹⁷ = 289003397 is a prime.

It is a super-2 number, since 2×289134469² = 167197482327823922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289134479) 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, 11120544 + ... + 11120569.

It is an arithmetic number, because the mean of its divisors is an integer number (77843899).

Almost surely, 2^289134469 is an apocalyptic number.

It is an amenable number.

289134469 is a deficient number, since it is larger than the sum of its proper divisors (22241127).

289134469 is a wasteful number, since it uses less digits than its factorization.

289134469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22241126.

The product of its digits is 373248, while the sum is 46.

The square root of 289134469 is about 17003.9545106425. The cubic root of 289134469 is about 661.2514280817.

The spelling of 289134469 in words is "two hundred eighty-nine million, one hundred thirty-four thousand, four hundred sixty-nine".