12172848 has 20 divisors (see below), whose sum is σ = 31446648. Its totient is φ = 4057600.

The previous prime is 12172843. The next prime is 12172871. The reversal of 12172848 is 84827121.

It is a happy number.

It is a super-2 number, since 2×12172848² = 296356456862208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12172841) 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 3 ways as a sum of consecutive naturals, for example, 126753 + ... + 126848.

Almost surely, 2^12172848 is an apocalyptic number.

It is an amenable number.

12172848 is an abundant number, since it is smaller than the sum of its proper divisors (19273800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12172848 is a wasteful number, since it uses less digits than its factorization.

12172848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253612 (or 253606 counting only the distinct ones).

The product of its digits is 7168, while the sum is 33.

The square root of 12172848 is about 3488.9608768228. The cubic root of 12172848 is about 230.0368434991.

Adding to 12172848 its reverse (84827121), we get a palindrome (96999969).

The spelling of 12172848 in words is "twelve million, one hundred seventy-two thousand, eight hundred forty-eight".