12369289 has 3 divisors (see below), whose sum is σ = 12372807. Its totient is φ = 12365772.

The previous prime is 12369281. The next prime is 12369317. The reversal of 12369289 is 98296321.

It is a happy number.

The square root of 12369289 is 3517.

It is a perfect power (a square), and thus also a powerful number.

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 only one way, i.e., 11868025 + 501264 = 3445^2 + 708^2 .

It is not a de Polignac number, because 12369289 - 2³ = 12369281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12369281) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1759 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (4124269).

Almost surely, 2^12369289 is an apocalyptic number.

12369289 is the 3517-th square number.

12369289 is the 1759-th centered octagonal number.

It is an amenable number.

12369289 is a deficient number, since it is larger than the sum of its proper divisors (3518).

12369289 is an frugal number, since it uses more digits than its factorization.

12369289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034 (or 3517 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The cubic root of 12369289 is about 231.2676632235.

Multiplying 12369289 by its product of digits (46656), we get a square (577101547584 = 759672²).

The spelling of 12369289 in words is "twelve million, three hundred sixty-nine thousand, two hundred eighty-nine".