12516893 has 4 divisors (see below), whose sum is σ = 12948540. Its totient is φ = 12085248.

The previous prime is 12516887. The next prime is 12516929. The reversal of 12516893 is 39861521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8508889 + 4008004 = 2917^2 + 2002^2 .

It is a cyclic number.

It is not a de Polignac number, because 12516893 - 2¹⁰ = 12515869 is a prime.

It is a super-2 number, since 2×12516893² = 313345220746898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516863) 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, 215780 + ... + 215837.

It is an arithmetic number, because the mean of its divisors is an integer number (3237135).

Almost surely, 2^12516893 is an apocalyptic number.

It is an amenable number.

12516893 is a deficient number, since it is larger than the sum of its proper divisors (431647).

12516893 is an equidigital number, since it uses as much as digits as its factorization.

12516893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431646.

The product of its digits is 12960, while the sum is 35.

The square root of 12516893 is about 3537.9221302906. The cubic root of 12516893 is about 232.1839417665.

The spelling of 12516893 in words is "twelve million, five hundred sixteen thousand, eight hundred ninety-three".