12995571 has 4 divisors (see below), whose sum is σ = 17327432. Its totient is φ = 8663712.

The previous prime is 12995561. The next prime is 12995657. The reversal of 12995571 is 17559921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17559921 = 3 ⋅5853307.

It is not a de Polignac number, because 12995571 - 2⁵ = 12995539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12995551) 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, 2165926 + ... + 2165931.

It is an arithmetic number, because the mean of its divisors is an integer number (4331858).

Almost surely, 2^12995571 is an apocalyptic number.

12995571 is a deficient number, since it is larger than the sum of its proper divisors (4331861).

12995571 is an equidigital number, since it uses as much as digits as its factorization.

12995571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331860.

The product of its digits is 28350, while the sum is 39.

The square root of 12995571 is about 3604.9370313502. The cubic root of 12995571 is about 235.1067630177.

The spelling of 12995571 in words is "twelve million, nine hundred ninety-five thousand, five hundred seventy-one".