12612870 has 24 divisors (see below), whose sum is σ = 32793696. Its totient is φ = 3363408.

The previous prime is 12612851. The next prime is 12612881. The reversal of 12612870 is 7821621.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69982 + ... + 70161.

It is an arithmetic number, because the mean of its divisors is an integer number (1366404).

Almost surely, 2^12612870 is an apocalyptic number.

12612870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12612870 is an abundant number, since it is smaller than the sum of its proper divisors (20180826).

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

12612870 is a wasteful number, since it uses less digits than its factorization.

12612870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140156 (or 140153 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12612870 is about 3551.4602630467. The cubic root of 12612870 is about 232.7758778634.

It can be divided in two parts, 126 and 12870, that added together give a square (12996 = 114²).

The spelling of 12612870 in words is "twelve million, six hundred twelve thousand, eight hundred seventy".