12508361 has 2 divisors, whose sum is σ = 12508362. Its totient is φ = 12508360.

The previous prime is 12508351. The next prime is 12508373. The reversal of 12508361 is 16380521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11022400 + 1485961 = 3320^2 + 1219^2 .

It is an emirp because it is prime and its reverse (16380521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12508361 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12508361.

It is not a weakly prime, because it can be changed into another prime (12508351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6254180 + 6254181.

It is an arithmetic number, because the mean of its divisors is an integer number (6254181).

Almost surely, 2^12508361 is an apocalyptic number.

It is an amenable number.

12508361 is a deficient number, since it is larger than the sum of its proper divisors (1).

12508361 is an equidigital number, since it uses as much as digits as its factorization.

12508361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 12508361 is about 3536.7161322334. The cubic root of 12508361 is about 232.1311745803.

Adding to 12508361 its reverse (16380521), we get a palindrome (28888882).

The spelling of 12508361 in words is "twelve million, five hundred eight thousand, three hundred sixty-one".