12097251 has 18 divisors (see below), whose sum is σ = 18566132. Its totient is φ = 7588800.

The previous prime is 12097231. The next prime is 12097259. The reversal of 12097251 is 15279021.

It is not a de Polignac number, because 12097251 - 2⁵ = 12097219 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12097259) 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 17 ways as a sum of consecutive naturals, for example, 276 + ... + 4926.

Almost surely, 2^12097251 is an apocalyptic number.

12097251 is a deficient number, since it is larger than the sum of its proper divisors (6468881).

12097251 is a wasteful number, since it uses less digits than its factorization.

12097251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691 (or 4671 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 12097251 is about 3478.1102627720. The cubic root of 12097251 is about 229.5596552740.

The spelling of 12097251 in words is "twelve million, ninety-seven thousand, two hundred fifty-one".