12880172 has 12 divisors (see below), whose sum is σ = 22922760. Its totient is φ = 6330816.

The previous prime is 12880171. The next prime is 12880183. The reversal of 12880172 is 27108821.

It is not an unprimeable number, because it can be changed into a prime (12880171) 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, 27053 + ... + 27524.

It is an arithmetic number, because the mean of its divisors is an integer number (1910230).

Almost surely, 2^12880172 is an apocalyptic number.

It is an amenable number.

12880172 is a deficient number, since it is larger than the sum of its proper divisors (10042588).

12880172 is a wasteful number, since it uses less digits than its factorization.

12880172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54640 (or 54638 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 12880172 is about 3588.8956518684. The cubic root of 12880172 is about 234.4087869987.

Adding to 12880172 its reverse (27108821), we get a palindrome (39988993).

The spelling of 12880172 in words is "twelve million, eight hundred eighty thousand, one hundred seventy-two".