12995811 has 18 divisors (see below), whose sum is σ = 19263140. Its totient is φ = 8442720.

The previous prime is 12995797. The next prime is 12995821. The reversal of 12995811 is 11859921.

12995811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12995811 - 2⁵ = 12995779 is a prime.

It is a super-2 number, since 2×12995811² = 337782207095442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12995821) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14700 + ... + 15558.

Almost surely, 2^12995811 is an apocalyptic number.

12995811 is a deficient number, since it is larger than the sum of its proper divisors (6267329).

12995811 is an equidigital number, since it uses as much as digits as its factorization.

12995811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 903 counting only the distinct ones).

The product of its digits is 6480, while the sum is 36.

The square root of 12995811 is about 3604.9703188792. The cubic root of 12995811 is about 235.1082103127.

The spelling of 12995811 in words is "twelve million, nine hundred ninety-five thousand, eight hundred eleven".