12169641 has 16 divisors (see below), whose sum is σ = 17786880. Its totient is φ = 7339920.

The previous prime is 12169631. The next prime is 12169669. The reversal of 12169641 is 14696121.

It is a happy number.

It is not a de Polignac number, because 12169641 - 2⁵ = 12169609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12169599 and 12169608.

It is not an unprimeable number, because it can be changed into a prime (12169601) 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 in 15 ways as a sum of consecutive naturals, for example, 7116 + ... + 8658.

It is an arithmetic number, because the mean of its divisors is an integer number (1111680).

Almost surely, 2^12169641 is an apocalyptic number.

12169641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12169641 is a deficient number, since it is larger than the sum of its proper divisors (5617239).

12169641 is a wasteful number, since it uses less digits than its factorization.

12169641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796.

The product of its digits is 2592, while the sum is 30.

The square root of 12169641 is about 3488.5012541205. The cubic root of 12169641 is about 230.0166402579.

It can be divided in two parts, 12 and 169641, that added together give a triangular number (169653 = T₅₈₂).

The spelling of 12169641 in words is "twelve million, one hundred sixty-nine thousand, six hundred forty-one".