12516259 has 4 divisors (see below), whose sum is σ = 14304304. Its totient is φ = 10728216.

The previous prime is 12516253. The next prime is 12516263. The reversal of 12516259 is 95261521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95261521 = 151 ⋅630871.

It is a cyclic number.

It is not a de Polignac number, because 12516259 - 2⁵ = 12516227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12516259.

It is not an unprimeable number, because it can be changed into a prime (12516253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 894012 + ... + 894025.

It is an arithmetic number, because the mean of its divisors is an integer number (3576076).

Almost surely, 2^12516259 is an apocalyptic number.

12516259 is a deficient number, since it is larger than the sum of its proper divisors (1788045).

12516259 is an equidigital number, since it uses as much as digits as its factorization.

12516259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788044.

The product of its digits is 5400, while the sum is 31.

The square root of 12516259 is about 3537.8325285406. The cubic root of 12516259 is about 232.1800215416.

It can be divided in two parts, 125 and 16259, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 12516259 in words is "twelve million, five hundred sixteen thousand, two hundred fifty-nine".