12045493 has 4 divisors (see below), whose sum is σ = 12054208. Its totient is φ = 12036780.

The previous prime is 12045463. The next prime is 12045497. The reversal of 12045493 is 39454021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39454021 = 1093 ⋅36097.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12045493 is a prime.

It is a super-2 number, since 2×12045493² = 290187803226098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773 + ... + 5218.

It is an arithmetic number, because the mean of its divisors is an integer number (3013552).

Almost surely, 2^12045493 is an apocalyptic number.

It is an amenable number.

12045493 is a deficient number, since it is larger than the sum of its proper divisors (8715).

12045493 is an equidigital number, since it uses as much as digits as its factorization.

12045493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8714.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 12045493 is about 3470.6617524616. The cubic root of 12045493 is about 229.2317974803.

The spelling of 12045493 in words is "twelve million, forty-five thousand, four hundred ninety-three".