13212897 has 4 divisors (see below), whose sum is σ = 17617200. Its totient is φ = 8808596.

The previous prime is 13212883. The next prime is 13212907. The reversal of 13212897 is 79821231.

13212897 is digitally balanced in base 2 and base 4, because in such bases 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.

It is a cyclic number.

It is not a de Polignac number, because 13212897 - 2¹² = 13208801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13212817) 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, 2202147 + ... + 2202152.

It is an arithmetic number, because the mean of its divisors is an integer number (4404300).

Almost surely, 2^13212897 is an apocalyptic number.

It is an amenable number.

13212897 is a deficient number, since it is larger than the sum of its proper divisors (4404303).

13212897 is an equidigital number, since it uses as much as digits as its factorization.

13212897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404302.

The product of its digits is 6048, while the sum is 33.

The square root of 13212897 is about 3634.9548828012. The cubic root of 13212897 is about 236.4100944496.

The spelling of 13212897 in words is "thirteen million, two hundred twelve thousand, eight hundred ninety-seven".