12909097 has 2 divisors, whose sum is σ = 12909098. Its totient is φ = 12909096.

The previous prime is 12909077. The next prime is 12909109. The reversal of 12909097 is 79090921.

12909097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12809241 + 99856 = 3579^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 12909097 - 2⁷ = 12908969 is a prime.

It is not a weakly prime, because it can be changed into another prime (12909047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6454548 + 6454549.

It is an arithmetic number, because the mean of its divisors is an integer number (6454549).

Almost surely, 2^12909097 is an apocalyptic number.

It is an amenable number.

12909097 is a deficient number, since it is larger than the sum of its proper divisors (1).

12909097 is an equidigital number, since it uses as much as digits as its factorization.

12909097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 12909097 is about 3592.9231831477. The cubic root of 12909097 is about 234.5841264015.

The spelling of 12909097 in words is "twelve million, nine hundred nine thousand, ninety-seven".