12931206 has 8 divisors (see below), whose sum is σ = 25862424. Its totient is φ = 4310400.

The previous prime is 12931199. The next prime is 12931213. The reversal of 12931206 is 60213921.

It is an interprime number because it is at equal distance from previous prime (12931199) and next prime (12931213).

It is a sphenic number, since it is the product of 3 distinct primes.

12931206 is an admirable number.

It is a super-2 number, since 2×12931206² = 334432177228872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077595 + ... + 1077606.

It is an arithmetic number, because the mean of its divisors is an integer number (3232803).

Almost surely, 2^12931206 is an apocalyptic number.

12931206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12931206 is a wasteful number, since it uses less digits than its factorization.

12931206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155206.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 12931206 is about 3595.9986095659. The cubic root of 12931206 is about 234.7179716114.

The spelling of 12931206 in words is "twelve million, nine hundred thirty-one thousand, two hundred six".