12641246 has 4 divisors (see below), whose sum is σ = 18961872. Its totient is φ = 6320622.

The previous prime is 12641203. The next prime is 12641249. The reversal of 12641246 is 64214621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64214621 = 2213 ⋅29017.

It is a super-2 number, since 2×12641246² = 319602200865032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3160310 + ... + 3160313.

It is an arithmetic number, because the mean of its divisors is an integer number (4740468).

Almost surely, 2^12641246 is an apocalyptic number.

12641246 is a deficient number, since it is larger than the sum of its proper divisors (6320626).

12641246 is an equidigital number, since it uses as much as digits as its factorization.

12641246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6320625.

The product of its digits is 2304, while the sum is 26.

The square root of 12641246 is about 3555.4529950486. The cubic root of 12641246 is about 232.9503108320.

Adding to 12641246 its reverse (64214621), we get a palindrome (76855867).

The spelling of 12641246 in words is "twelve million, six hundred forty-one thousand, two hundred forty-six".