12481947 has 6 divisors (see below), whose sum is σ = 18029492. Its totient is φ = 8321292.

The previous prime is 12481907. The next prime is 12481951. The reversal of 12481947 is 74918421.

It is not a de Polignac number, because 12481947 - 2¹⁸ = 12219803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12481907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 693433 + ... + 693450.

Almost surely, 2^12481947 is an apocalyptic number.

12481947 is a deficient number, since it is larger than the sum of its proper divisors (5547545).

12481947 is a wasteful number, since it uses less digits than its factorization.

12481947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386889 (or 1386886 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 12481947 is about 3532.9799037074. The cubic root of 12481947 is about 231.9676617134.

The spelling of 12481947 in words is "twelve million, four hundred eighty-one thousand, nine hundred forty-seven".