12196845 has 32 divisors (see below), whose sum is σ = 21853440. Its totient is φ = 6454080.

The previous prime is 12196819. The next prime is 12196853. The reversal of 12196845 is 54869121.

It is not a de Polignac number, because 12196845 - 2⁵ = 12196813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22275 + ... + 22815.

It is an arithmetic number, because the mean of its divisors is an integer number (682920).

Almost surely, 2^12196845 is an apocalyptic number.

12196845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12196845 is a deficient number, since it is larger than the sum of its proper divisors (9656595).

12196845 is a wasteful number, since it uses less digits than its factorization.

12196845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 716 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 12196845 is about 3492.3981731756. The cubic root of 12196845 is about 230.1879056740.

It can be divided in two parts, 12196 and 845, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 12196845 in words is "twelve million, one hundred ninety-six thousand, eight hundred forty-five".