12513271 has 2 divisors, whose sum is σ = 12513272. Its totient is φ = 12513270.

The previous prime is 12513269. The next prime is 12513283. The reversal of 12513271 is 17231521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12513271 - 2¹ = 12513269 is a prime.

It is a super-2 number, since 2×12513271² = 313163902238882, which contains 22 as substring.

Together with 12513269, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12511271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6256635 + 6256636.

It is an arithmetic number, because the mean of its divisors is an integer number (6256636).

Almost surely, 2^12513271 is an apocalyptic number.

12513271 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513271 is an equidigital number, since it uses as much as digits as its factorization.

12513271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 22.

The square root of 12513271 is about 3537.4102108746. The cubic root of 12513271 is about 232.1615439992.

Adding to 12513271 its reverse (17231521), we get a palindrome (29744792).

The spelling of 12513271 in words is "twelve million, five hundred thirteen thousand, two hundred seventy-one".