12045487 has 12 divisors (see below), whose sum is σ = 12944856. Its totient is φ = 11203920.

The previous prime is 12045463. The next prime is 12045497. The reversal of 12045487 is 78454021.

It is not a de Polignac number, because 12045487 - 2¹⁹ = 11521199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045427) 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, 21748 + ... + 22294.

It is an arithmetic number, because the mean of its divisors is an integer number (1078738).

Almost surely, 2^12045487 is an apocalyptic number.

12045487 is a deficient number, since it is larger than the sum of its proper divisors (899369).

12045487 is an equidigital number, since it uses as much as digits as its factorization.

12045487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 12045487 is about 3470.6608880730. The cubic root of 12045487 is about 229.2317594192.

The spelling of 12045487 in words is "twelve million, forty-five thousand, four hundred eighty-seven".