12495271 has 4 divisors (see below), whose sum is σ = 12567672. Its totient is φ = 12422872.

The previous prime is 12495269. The next prime is 12495277. The reversal of 12495271 is 17259421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17259421 = 107 ⋅161303.

It is a cyclic number.

It is not a de Polignac number, because 12495271 - 2¹ = 12495269 is a prime.

It is a super-2 number, since 2×12495271² = 312263594726882, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12495277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35941 + ... + 36286.

It is an arithmetic number, because the mean of its divisors is an integer number (3141918).

Almost surely, 2^12495271 is an apocalyptic number.

12495271 is a deficient number, since it is larger than the sum of its proper divisors (72401).

12495271 is an equidigital number, since it uses as much as digits as its factorization.

12495271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72400.

The product of its digits is 5040, while the sum is 31.

The square root of 12495271 is about 3534.8650610738. The cubic root of 12495271 is about 232.0501712243.

The spelling of 12495271 in words is "twelve million, four hundred ninety-five thousand, two hundred seventy-one".