13615493 has 2 divisors, whose sum is σ = 13615494. Its totient is φ = 13615492.

The previous prime is 13615451. The next prime is 13615513. The reversal of 13615493 is 39451631.

13615493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11175649 + 2439844 = 3343^2 + 1562^2 .

It is an emirp because it is prime and its reverse (39451631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13615493 - 2¹² = 13611397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13615093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6807746 + 6807747.

It is an arithmetic number, because the mean of its divisors is an integer number (6807747).

Almost surely, 2^13615493 is an apocalyptic number.

It is an amenable number.

13615493 is a deficient number, since it is larger than the sum of its proper divisors (1).

13615493 is an equidigital number, since it uses as much as digits as its factorization.

13615493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 13615493 is about 3689.9177497608. The cubic root of 13615493 is about 238.7872443564.

The spelling of 13615493 in words is "thirteen million, six hundred fifteen thousand, four hundred ninety-three".