12982931 has 4 divisors (see below), whose sum is σ = 13981632. Its totient is φ = 11984232.

The previous prime is 12982919. The next prime is 12982973. The reversal of 12982931 is 13928921.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12982931 - 2¹⁸ = 12720787 is a prime.

It is a super-2 number, since 2×12982931² = 337112994701522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12982891 and 12982900.

It is not an unprimeable number, because it can be changed into a prime (12982901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499331 + ... + 499356.

It is an arithmetic number, because the mean of its divisors is an integer number (3495408).

Almost surely, 2^12982931 is an apocalyptic number.

12982931 is a deficient number, since it is larger than the sum of its proper divisors (998701).

12982931 is an equidigital number, since it uses as much as digits as its factorization.

12982931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998700.

The product of its digits is 7776, while the sum is 35.

The square root of 12982931 is about 3603.1834535588. The cubic root of 12982931 is about 235.0305136174.

The spelling of 12982931 in words is "twelve million, nine hundred eighty-two thousand, nine hundred thirty-one".