12519131 has 2 divisors, whose sum is σ = 12519132. Its totient is φ = 12519130.

The previous prime is 12519113. The next prime is 12519137. The reversal of 12519131 is 13191521.

Together with previous prime (12519113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12519131 - 2¹⁴ = 12502747 is a prime.

It is a super-2 number, since 2×12519131² = 313457281990322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12519097 and 12519106.

It is not a weakly prime, because it can be changed into another prime (12519137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6259565 + 6259566.

It is an arithmetic number, because the mean of its divisors is an integer number (6259566).

Almost surely, 2^12519131 is an apocalyptic number.

12519131 is a deficient number, since it is larger than the sum of its proper divisors (1).

12519131 is an equidigital number, since it uses as much as digits as its factorization.

12519131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 23.

The square root of 12519131 is about 3538.2384034997. The cubic root of 12519131 is about 232.1977789782.

The spelling of 12519131 in words is "twelve million, five hundred nineteen thousand, one hundred thirty-one".