12512247 has 12 divisors (see below), whose sum is σ = 18338040. Its totient is φ = 7582960.

The previous prime is 12512239. The next prime is 12512263. The reversal of 12512247 is 74221521.

It is not a de Polignac number, because 12512247 - 2³ = 12512239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16872 + ... + 17597.

It is an arithmetic number, because the mean of its divisors is an integer number (1528170).

Almost surely, 2^12512247 is an apocalyptic number.

12512247 is a deficient number, since it is larger than the sum of its proper divisors (5825793).

12512247 is a wasteful number, since it uses less digits than its factorization.

12512247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34494 (or 34483 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 12512247 is about 3537.2654692573. The cubic root of 12512247 is about 232.1552109920.

Adding to 12512247 its reverse (74221521), we get a palindrome (86733768).

The spelling of 12512247 in words is "twelve million, five hundred twelve thousand, two hundred forty-seven".