12611641 has 8 divisors (see below), whose sum is σ = 14765184. Its totient is φ = 10546080.

The previous prime is 12611633. The next prime is 12611693. The reversal of 12611641 is 14611621.

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

It is a cyclic number.

It is not a de Polignac number, because 12611641 - 2³ = 12611633 is a prime.

It is a super-3 number, since 3×12611641³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12641641) 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, 21685 + ... + 22258.

It is an arithmetic number, because the mean of its divisors is an integer number (1845648).

Almost surely, 2^12611641 is an apocalyptic number.

It is an amenable number.

12611641 is a deficient number, since it is larger than the sum of its proper divisors (2153543).

12611641 is an equidigital number, since it uses as much as digits as its factorization.

12611641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43991.

The product of its digits is 288, while the sum is 22.

The square root of 12611641 is about 3551.2872314134. The cubic root of 12611641 is about 232.7683170453.

The spelling of 12611641 in words is "twelve million, six hundred eleven thousand, six hundred forty-one".