12981934 has 16 divisors (see below), whose sum is σ = 22477536. Its totient is φ = 5508000.

The previous prime is 12981911. The next prime is 12981949. The reversal of 12981934 is 43918921.

12981934 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12981934² = 337061220760712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12981893 and 12981902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3177 + ... + 6004.

It is an arithmetic number, because the mean of its divisors is an integer number (1404846).

Almost surely, 2^12981934 is an apocalyptic number.

12981934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12981934 is a deficient number, since it is larger than the sum of its proper divisors (9495602).

12981934 is a wasteful number, since it uses less digits than its factorization.

12981934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9291.

The product of its digits is 15552, while the sum is 37.

The square root of 12981934 is about 3603.0451010222. The cubic root of 12981934 is about 235.0244972199.

The spelling of 12981934 in words is "twelve million, nine hundred eighty-one thousand, nine hundred thirty-four".