12512471 has 4 divisors (see below), whose sum is σ = 12520200. Its totient is φ = 12504744.

The previous prime is 12512447. The next prime is 12512501. The reversal of 12512471 is 17421521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12512471 - 2⁶ = 12512407 is a prime.

It is a super-3 number, since 3×12512471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401 + ... + 5018.

It is an arithmetic number, because the mean of its divisors is an integer number (3130050).

Almost surely, 2^12512471 is an apocalyptic number.

12512471 is a deficient number, since it is larger than the sum of its proper divisors (7729).

12512471 is an equidigital number, since it uses as much as digits as its factorization.

12512471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728.

The product of its digits is 560, while the sum is 23.

The square root of 12512471 is about 3537.2971319922. The cubic root of 12512471 is about 232.1565963669.

Adding to 12512471 its reverse (17421521), we get a palindrome (29933992).

The spelling of 12512471 in words is "twelve million, five hundred twelve thousand, four hundred seventy-one".