12041545 has 4 divisors (see below), whose sum is σ = 14449860. Its totient is φ = 9633232.

The previous prime is 12041527. The next prime is 12041551. The reversal of 12041545 is 54514021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54514021 = 19 ⋅2869159.

It can be written as a sum of positive squares in 2 ways, for example, as 5508409 + 6533136 = 2347^2 + 2556^2 .

It is a cyclic number.

It is not a de Polignac number, because 12041545 - 2⁹ = 12041033 is a prime.

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, 1204150 + ... + 1204159.

It is an arithmetic number, because the mean of its divisors is an integer number (3612465).

Almost surely, 2^12041545 is an apocalyptic number.

It is an amenable number.

12041545 is a deficient number, since it is larger than the sum of its proper divisors (2408315).

12041545 is an equidigital number, since it uses as much as digits as its factorization.

12041545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408314.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 12041545 is about 3470.0929382367. The cubic root of 12041545 is about 229.2067506009.

Adding to 12041545 its reverse (54514021), we get a palindrome (66555566).

The spelling of 12041545 in words is "twelve million, forty-one thousand, five hundred forty-five".