12911097 has 8 divisors (see below), whose sum is σ = 17770240. Its totient is φ = 8329680.

The previous prime is 12911081. The next prime is 12911099. The reversal of 12911097 is 79011921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12911097 - 2⁴ = 12911081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12911099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69322 + ... + 69507.

It is an arithmetic number, because the mean of its divisors is an integer number (2221280).

Almost surely, 2^12911097 is an apocalyptic number.

It is an amenable number.

12911097 is a deficient number, since it is larger than the sum of its proper divisors (4859143).

12911097 is a wasteful number, since it uses less digits than its factorization.

12911097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138863.

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 12911097 is about 3593.2014972723. The cubic root of 12911097 is about 234.5962404434.

The spelling of 12911097 in words is "twelve million, nine hundred eleven thousand, ninety-seven".