12495671 has 4 divisors (see below), whose sum is σ = 12786312. Its totient is φ = 12205032.

The previous prime is 12495661. The next prime is 12495709. The reversal of 12495671 is 17659421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17659421 = 13 ⋅1358417.

It is a cyclic number.

It is not a de Polignac number, because 12495671 - 2¹⁸ = 12233527 is a prime.

It is a super-2 number, since 2×12495671² = 312283587480482, which contains 22 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 (12495661) 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, 145256 + ... + 145341.

It is an arithmetic number, because the mean of its divisors is an integer number (3196578).

Almost surely, 2^12495671 is an apocalyptic number.

12495671 is a deficient number, since it is larger than the sum of its proper divisors (290641).

12495671 is an equidigital number, since it uses as much as digits as its factorization.

12495671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290640.

The product of its digits is 15120, while the sum is 35.

The square root of 12495671 is about 3534.9216398670. The cubic root of 12495671 is about 232.0526473365.

The spelling of 12495671 in words is "twelve million, four hundred ninety-five thousand, six hundred seventy-one".