12815273 has 4 divisors (see below), whose sum is σ = 12850560. Its totient is φ = 12779988.

The previous prime is 12815269. The next prime is 12815281. The reversal of 12815273 is 37251821.

12815273 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: 37251821 = 41 ⋅908581.

It is a cyclic number.

It is not a de Polignac number, because 12815273 - 2² = 12815269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12815293) 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, 17093 + ... + 17826.

It is an arithmetic number, because the mean of its divisors is an integer number (3212640).

Almost surely, 2^12815273 is an apocalyptic number.

It is an amenable number.

12815273 is a deficient number, since it is larger than the sum of its proper divisors (35287).

12815273 is an equidigital number, since it uses as much as digits as its factorization.

12815273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35286.

The product of its digits is 3360, while the sum is 29.

The square root of 12815273 is about 3579.8425943050. The cubic root of 12815273 is about 234.0144206663.

The spelling of 12815273 in words is "twelve million, eight hundred fifteen thousand, two hundred seventy-three".