12197151 has 12 divisors (see below), whose sum is σ = 17688528. Its totient is φ = 8098944.

The previous prime is 12197123. The next prime is 12197189. The reversal of 12197151 is 15179121.

It is not a de Polignac number, because 12197151 - 2²² = 8002847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210 + ... + 4943.

It is an arithmetic number, because the mean of its divisors is an integer number (1474044).

Almost surely, 2^12197151 is an apocalyptic number.

12197151 is a deficient number, since it is larger than the sum of its proper divisors (5491377).

12197151 is a wasteful number, since it uses less digits than its factorization.

12197151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5422 (or 5419 counting only the distinct ones).

The product of its digits is 630, while the sum is 27.

The square root of 12197151 is about 3492.4419823384. The cubic root of 12197151 is about 230.1898306776.

The spelling of 12197151 in words is "twelve million, one hundred ninety-seven thousand, one hundred fifty-one".