12095981 has 4 divisors (see below), whose sum is σ = 12103872. Its totient is φ = 12088092.

The previous prime is 12095971. The next prime is 12096001. The reversal of 12095981 is 18959021.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18959021 = 907 ⋅20903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12095981 is a prime.

It is a super-2 number, since 2×12095981² = 292625512704722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12095911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821 + ... + 4986.

It is an arithmetic number, because the mean of its divisors is an integer number (3025968).

Almost surely, 2^12095981 is an apocalyptic number.

It is an amenable number.

12095981 is a deficient number, since it is larger than the sum of its proper divisors (7891).

12095981 is an equidigital number, since it uses as much as digits as its factorization.

12095981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7890.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 12095981 is about 3477.9276875749. The cubic root of 12095981 is about 229.5516217418.

The spelling of 12095981 in words is "twelve million, ninety-five thousand, nine hundred eighty-one".