12446145 has 12 divisors (see below), whose sum is σ = 21573396. Its totient is φ = 6637920.

The previous prime is 12446143. The next prime is 12446153. The reversal of 12446145 is 54164421.

12446145 is a `hidden beast` number, since 1 + 2 + 44 + 614 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5602689 + 6843456 = 2367^2 + 2616^2 .

It is not a de Polignac number, because 12446145 - 2¹ = 12446143 is a prime.

It is a super-2 number, since 2×12446145² = 309813050722050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12446143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138246 + ... + 138335.

It is an arithmetic number, because the mean of its divisors is an integer number (1797783).

Almost surely, 2^12446145 is an apocalyptic number.

12446145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12446145 is a deficient number, since it is larger than the sum of its proper divisors (9127251).

12446145 is a wasteful number, since it uses less digits than its factorization.

12446145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276592 (or 276589 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 12446145 is about 3527.9094376132. The cubic root of 12446145 is about 231.7456648505.

The spelling of 12446145 in words is "twelve million, four hundred forty-six thousand, one hundred forty-five".