12616237 has 2 divisors, whose sum is σ = 12616238. Its totient is φ = 12616236.

The previous prime is 12616231. The next prime is 12616271. The reversal of 12616237 is 73261621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11874916 + 741321 = 3446^2 + 861^2 .

It is an emirp because it is prime and its reverse (73261621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12616237 - 2³ = 12616229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12616231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6308118 + 6308119.

It is an arithmetic number, because the mean of its divisors is an integer number (6308119).

Almost surely, 2^12616237 is an apocalyptic number.

It is an amenable number.

12616237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12616237 is an equidigital number, since it uses as much as digits as its factorization.

12616237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 12616237 is about 3551.9342617791. The cubic root of 12616237 is about 232.7965891593.

Adding to 12616237 its reverse (73261621), we get a palindrome (85877858).

The spelling of 12616237 in words is "twelve million, six hundred sixteen thousand, two hundred thirty-seven".