12971253 has 4 divisors (see below), whose sum is σ = 17295008. Its totient is φ = 8647500.

The previous prime is 12971249. The next prime is 12971261. The reversal of 12971253 is 35217921.

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: 35217921 = 3 ⋅11739307.

It is not a de Polignac number, because 12971253 - 2² = 12971249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12971253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12971213) 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, 2161873 + ... + 2161878.

It is an arithmetic number, because the mean of its divisors is an integer number (4323752).

Almost surely, 2^12971253 is an apocalyptic number.

It is an amenable number.

12971253 is a deficient number, since it is larger than the sum of its proper divisors (4323755).

12971253 is an equidigital number, since it uses as much as digits as its factorization.

12971253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323754.

The product of its digits is 3780, while the sum is 30.

The square root of 12971253 is about 3601.5625775488. The cubic root of 12971253 is about 234.9600233794.

The spelling of 12971253 in words is "twelve million, nine hundred seventy-one thousand, two hundred fifty-three".