12497931 has 6 divisors (see below), whose sum is σ = 18052580. Its totient is φ = 8331948.

The previous prime is 12497909. The next prime is 12497951. The reversal of 12497931 is 13979421.

It is not a de Polignac number, because 12497931 - 2¹³ = 12489739 is a prime.

It is a super-2 number, since 2×12497931² = 312396558561522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12497951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 694321 + ... + 694338.

Almost surely, 2^12497931 is an apocalyptic number.

12497931 is a deficient number, since it is larger than the sum of its proper divisors (5554649).

12497931 is a wasteful number, since it uses less digits than its factorization.

12497931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388665 (or 1388662 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 12497931 is about 3535.2412930379. The cubic root of 12497931 is about 232.0666363777.

It can be divided in two parts, 1249 and 7931, that added together give a triangular number (9180 = T₁₃₅).

The spelling of 12497931 in words is "twelve million, four hundred ninety-seven thousand, nine hundred thirty-one".