12036545 has 4 divisors (see below), whose sum is σ = 14443860. Its totient is φ = 9629232.

The previous prime is 12036539. The next prime is 12036551. The reversal of 12036545 is 54563021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54563021 = 523 ⋅104327.

It is an interprime number because it is at equal distance from previous prime (12036539) and next prime (12036551).

It can be written as a sum of positive squares in 2 ways, for example, as 3701776 + 8334769 = 1924^2 + 2887^2 .

It is a cyclic number.

It is not a de Polignac number, because 12036545 - 2¹⁴ = 12020161 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1203650 + ... + 1203659.

It is an arithmetic number, because the mean of its divisors is an integer number (3610965).

Almost surely, 2^12036545 is an apocalyptic number.

It is an amenable number.

12036545 is a deficient number, since it is larger than the sum of its proper divisors (2407315).

12036545 is an equidigital number, since it uses as much as digits as its factorization.

12036545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407314.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 12036545 is about 3469.3724216348. The cubic root of 12036545 is about 229.1750217707.

Adding to 12036545 its reverse (54563021), we get a palindrome (66599566).

The spelling of 12036545 in words is "twelve million, thirty-six thousand, five hundred forty-five".