12599005 has 4 divisors (see below), whose sum is σ = 15118812. Its totient is φ = 10079200.

The previous prime is 12598991. The next prime is 12599017. The reversal of 12599005 is 50099521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50099521 = 4007 ⋅12503.

It can be written as a sum of positive squares in 2 ways, for example, as 3345241 + 9253764 = 1829^2 + 3042^2 .

It is not a de Polignac number, because 12599005 - 2¹¹ = 12596957 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1259896 + ... + 1259905.

It is an arithmetic number, because the mean of its divisors is an integer number (3779703).

Almost surely, 2^12599005 is an apocalyptic number.

It is an amenable number.

12599005 is a deficient number, since it is larger than the sum of its proper divisors (2519807).

12599005 is an equidigital number, since it uses as much as digits as its factorization.

12599005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519806.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 12599005 is about 3549.5077123455. The cubic root of 12599005 is about 232.6905517671.

The spelling of 12599005 in words is "twelve million, five hundred ninety-nine thousand, five".