12735197 has 4 divisors (see below), whose sum is σ = 12742620. Its totient is φ = 12727776.

The previous prime is 12735157. The next prime is 12735221. The reversal of 12735197 is 79153721.

It is a happy number.

12735197 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2114116 + 10621081 = 1454^2 + 3259^2 .

It is a cyclic number.

It is not a de Polignac number, because 12735197 - 2⁸ = 12734941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12735127) 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, 329 + ... + 5057.

It is an arithmetic number, because the mean of its divisors is an integer number (3185655).

Almost surely, 2^12735197 is an apocalyptic number.

It is an amenable number.

12735197 is a deficient number, since it is larger than the sum of its proper divisors (7423).

12735197 is an equidigital number, since it uses as much as digits as its factorization.

12735197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7422.

The product of its digits is 13230, while the sum is 35.

The square root of 12735197 is about 3568.6407776631. The cubic root of 12735197 is about 233.5259903177.

The spelling of 12735197 in words is "twelve million, seven hundred thirty-five thousand, one hundred ninety-seven".