12298981 has 4 divisors (see below), whose sum is σ = 12333600. Its totient is φ = 12264364.

The previous prime is 12298969. The next prime is 12298991. The reversal of 12298981 is 18989221.

12298981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 18989221 = 17 ⋅1117013.

It is a cyclic number.

It is not a de Polignac number, because 12298981 - 2⁹ = 12298469 is a prime.

It is a super-2 number, since 2×12298981² = 302529867276722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12298961) 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, 16771 + ... + 17488.

It is an arithmetic number, because the mean of its divisors is an integer number (3083400).

Almost surely, 2^12298981 is an apocalyptic number.

It is an amenable number.

12298981 is a deficient number, since it is larger than the sum of its proper divisors (34619).

12298981 is an equidigital number, since it uses as much as digits as its factorization.

12298981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34618.

The product of its digits is 20736, while the sum is 40.

The square root of 12298981 is about 3506.9903050907. The cubic root of 12298981 is about 230.8286492495.

The spelling of 12298981 in words is "twelve million, two hundred ninety-eight thousand, nine hundred eighty-one".