12198613 has 4 divisors (see below), whose sum is σ = 13941280. Its totient is φ = 10455948.

The previous prime is 12198611. The next prime is 12198629. The reversal of 12198613 is 31689121.

12198613 is digitally balanced in base 2, 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: 31689121 = 337 ⋅94033.

It is a cyclic number.

It is not a de Polignac number, because 12198613 - 2¹ = 12198611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12198611) 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, 871323 + ... + 871336.

It is an arithmetic number, because the mean of its divisors is an integer number (3485320).

Almost surely, 2^12198613 is an apocalyptic number.

It is an amenable number.

12198613 is a deficient number, since it is larger than the sum of its proper divisors (1742667).

12198613 is an equidigital number, since it uses as much as digits as its factorization.

12198613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742666.

The product of its digits is 2592, while the sum is 31.

The square root of 12198613 is about 3492.6512851987. The cubic root of 12198613 is about 230.1990274725.

The spelling of 12198613 in words is "twelve million, one hundred ninety-eight thousand, six hundred thirteen".