12730519 has 2 divisors, whose sum is σ = 12730520. Its totient is φ = 12730518.

The previous prime is 12730511. The next prime is 12730567. The reversal of 12730519 is 91503721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12730519 - 2³ = 12730511 is a prime.

It is a super-2 number, since 2×12730519² = 324132228018722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12730511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6365259 + 6365260.

It is an arithmetic number, because the mean of its divisors is an integer number (6365260).

Almost surely, 2^12730519 is an apocalyptic number.

12730519 is a deficient number, since it is larger than the sum of its proper divisors (1).

12730519 is an equidigital number, since it uses as much as digits as its factorization.

12730519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 12730519 is about 3567.9852858441. The cubic root of 12730519 is about 233.4973932370.

The spelling of 12730519 in words is "twelve million, seven hundred thirty thousand, five hundred nineteen".