12775519 has 2 divisors, whose sum is σ = 12775520. Its totient is φ = 12775518.

The previous prime is 12775489. The next prime is 12775537. The reversal of 12775519 is 91557721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12775519 - 2⁵ = 12775487 is a prime.

It is a super-2 number, since 2×12775519² = 326427771438722, which contains 22 as substring.

It is equal to p₈₃₅₅₉₇ and since 12775519 and 835597 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12775549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6387759 + 6387760.

It is an arithmetic number, because the mean of its divisors is an integer number (6387760).

Almost surely, 2^12775519 is an apocalyptic number.

12775519 is a deficient number, since it is larger than the sum of its proper divisors (1).

12775519 is an equidigital number, since it uses as much as digits as its factorization.

12775519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 37.

The square root of 12775519 is about 3574.2858027863. The cubic root of 12775519 is about 233.7721928846.

The spelling of 12775519 in words is "twelve million, seven hundred seventy-five thousand, five hundred nineteen".