12971193 has 4 divisors (see below), whose sum is σ = 17294928. Its totient is φ = 8647460.

The previous prime is 12971173. The next prime is 12971197. The reversal of 12971193 is 39117921.

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.

It is a cyclic number.

It is not a de Polignac number, because 12971193 - 2⁹ = 12970681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12971197) 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, 2161863 + ... + 2161868.

It is an arithmetic number, because the mean of its divisors is an integer number (4323732).

Almost surely, 2^12971193 is an apocalyptic number.

It is an amenable number.

12971193 is a deficient number, since it is larger than the sum of its proper divisors (4323735).

12971193 is an equidigital number, since it uses as much as digits as its factorization.

12971193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323734.

The product of its digits is 3402, while the sum is 33.

The square root of 12971193 is about 3601.5542478213. The cubic root of 12971193 is about 234.9596611008.

The spelling of 12971193 in words is "twelve million, nine hundred seventy-one thousand, one hundred ninety-three".