12161036 has 12 divisors (see below), whose sum is σ = 21599928. Its totient is φ = 5989632.

The previous prime is 12161029. The next prime is 12161041. The reversal of 12161036 is 63016121.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 12160999 and 12161017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22421 + ... + 22956.

It is an arithmetic number, because the mean of its divisors is an integer number (1799994).

Almost surely, 2^12161036 is an apocalyptic number.

It is an amenable number.

12161036 is a deficient number, since it is larger than the sum of its proper divisors (9438892).

12161036 is a wasteful number, since it uses less digits than its factorization.

12161036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45448 (or 45446 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12161036 is about 3487.2676983564. The cubic root of 12161036 is about 229.9624135177.

Adding to 12161036 its reverse (63016121), we get a palindrome (75177157).

The spelling of 12161036 in words is "twelve million, one hundred sixty-one thousand, thirty-six".