12055845 has 16 divisors (see below), whose sum is σ = 19760832. Its totient is φ = 6272640.

The previous prime is 12055843. The next prime is 12055847. The reversal of 12055845 is 54855021.

It is an interprime number because it is at equal distance from previous prime (12055843) and next prime (12055847).

It is not a de Polignac number, because 12055845 - 2¹ = 12055843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12055843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9187 + ... + 10416.

It is an arithmetic number, because the mean of its divisors is an integer number (1235052).

Almost surely, 2^12055845 is an apocalyptic number.

12055845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12055845 is a deficient number, since it is larger than the sum of its proper divisors (7704987).

12055845 is a wasteful number, since it uses less digits than its factorization.

12055845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19652.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 12055845 is about 3472.1527904169. The cubic root of 12055845 is about 229.2974466017.

The spelling of 12055845 in words is "twelve million, fifty-five thousand, eight hundred forty-five".