12873137 has 4 divisors (see below), whose sum is σ = 12902640. Its totient is φ = 12843636.

The previous prime is 12873083. The next prime is 12873149. The reversal of 12873137 is 73137821.

12873137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73137821 = 19 ⋅3849359.

It is a cyclic number.

It is not a de Polignac number, because 12873137 - 2¹² = 12869041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12873197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14087 + ... + 14972.

It is an arithmetic number, because the mean of its divisors is an integer number (3225660).

Almost surely, 2^12873137 is an apocalyptic number.

It is an amenable number.

12873137 is a deficient number, since it is larger than the sum of its proper divisors (29503).

12873137 is an equidigital number, since it uses as much as digits as its factorization.

12873137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29502.

The product of its digits is 7056, while the sum is 32.

The square root of 12873137 is about 3587.9154114890. The cubic root of 12873137 is about 234.3661021096.

The spelling of 12873137 in words is "twelve million, eight hundred seventy-three thousand, one hundred thirty-seven".