13615361 has 2 divisors, whose sum is σ = 13615362. Its totient is φ = 13615360.

The previous prime is 13615337. The next prime is 13615367. The reversal of 13615361 is 16351631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12645136 + 970225 = 3556^2 + 985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13615361 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 13615361.

It is not a weakly prime, because it can be changed into another prime (13615367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6807680 + 6807681.

It is an arithmetic number, because the mean of its divisors is an integer number (6807681).

Almost surely, 2^13615361 is an apocalyptic number.

It is an amenable number.

13615361 is a deficient number, since it is larger than the sum of its proper divisors (1).

13615361 is an equidigital number, since it uses as much as digits as its factorization.

13615361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 26.

The square root of 13615361 is about 3689.8998631399. The cubic root of 13615361 is about 238.7864726860.

Adding to 13615361 its reverse (16351631), we get a palindrome (29966992).

The spelling of 13615361 in words is "thirteen million, six hundred fifteen thousand, three hundred sixty-one".