12975497 has 4 divisors (see below), whose sum is σ = 13002000. Its totient is φ = 12948996.

The previous prime is 12975491. The next prime is 12975503. The reversal of 12975497 is 79457921.

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: 79457921 = 179 ⋅443899.

It is an interprime number because it is at equal distance from previous prime (12975491) and next prime (12975503).

It is a cyclic number.

It is not a de Polignac number, because 12975497 - 2⁸ = 12975241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12975491) 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, 12503 + ... + 13500.

It is an arithmetic number, because the mean of its divisors is an integer number (3250500).

Almost surely, 2^12975497 is an apocalyptic number.

It is an amenable number.

12975497 is a deficient number, since it is larger than the sum of its proper divisors (26503).

12975497 is an equidigital number, since it uses as much as digits as its factorization.

12975497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26502.

The product of its digits is 158760, while the sum is 44.

The square root of 12975497 is about 3602.1517180707. The cubic root of 12975497 is about 234.9856457205.

The spelling of 12975497 in words is "twelve million, nine hundred seventy-five thousand, four hundred ninety-seven".