13648519 has 2 divisors, whose sum is σ = 13648520. Its totient is φ = 13648518.

The previous prime is 13648513. The next prime is 13648541. The reversal of 13648519 is 91584631.

It is a weak prime.

It is an emirp because it is prime and its reverse (91584631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13648519 - 2³ = 13648511 is a prime.

It is a super-2 number, since 2×13648519² = 372564141786722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13648511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6824259 + 6824260.

It is an arithmetic number, because the mean of its divisors is an integer number (6824260).

Almost surely, 2^13648519 is an apocalyptic number.

13648519 is a deficient number, since it is larger than the sum of its proper divisors (1).

13648519 is an equidigital number, since it uses as much as digits as its factorization.

13648519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The square root of 13648519 is about 3694.3902067865. The cubic root of 13648519 is about 238.9801574302.

The spelling of 13648519 in words is "thirteen million, six hundred forty-eight thousand, five hundred nineteen".