12000197 has 4 divisors (see below), whose sum is σ = 13091136. Its totient is φ = 10909260.

The previous prime is 12000133. The next prime is 12000239. The reversal of 12000197 is 79100021.

12000197 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.

It is a cyclic number.

It is not a de Polignac number, because 12000197 - 2⁶ = 12000133 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 (12000127) 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, 545453 + ... + 545474.

It is an arithmetic number, because the mean of its divisors is an integer number (3272784).

Almost surely, 2^12000197 is an apocalyptic number.

It is an amenable number.

12000197 is a deficient number, since it is larger than the sum of its proper divisors (1090939).

12000197 is a wasteful number, since it uses less digits than its factorization.

12000197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090938.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 12000197 is about 3464.1300495218. The cubic root of 12000197 is about 228.9441013300.

The spelling of 12000197 in words is "twelve million, one hundred ninety-seven", and thus it is an aban number.