12646131 has 8 divisors (see below), whose sum is σ = 16879824. Its totient is φ = 8421600.

The previous prime is 12646121. The next prime is 12646141. The reversal of 12646131 is 13164621.

12646131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12646121) and next prime (12646141).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12646131 - 2⁷ = 12646003 is a prime.

It is a super-2 number, since 2×12646131² = 319849258538322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12646111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2181 + ... + 5481.

It is an arithmetic number, because the mean of its divisors is an integer number (2109978).

Almost surely, 2^12646131 is an apocalyptic number.

12646131 is a deficient number, since it is larger than the sum of its proper divisors (4233693).

12646131 is a wasteful number, since it uses less digits than its factorization.

12646131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581.

The product of its digits is 864, while the sum is 24.

The square root of 12646131 is about 3556.1399016349. The cubic root of 12646131 is about 232.9803135633.

The spelling of 12646131 in words is "twelve million, six hundred forty-six thousand, one hundred thirty-one".