12187053 has 18 divisors (see below), whose sum is σ = 18015374. Its totient is φ = 7938864.

The previous prime is 12187051. The next prime is 12187057. The reversal of 12187053 is 35078121.

It can be written as a sum of positive squares in only one way, i.e., 6441444 + 5745609 = 2538^2 + 2397^2 .

It is not a de Polignac number, because 12187053 - 2¹ = 12187051 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 (12187051) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19575 + ... + 20187.

Almost surely, 2^12187053 is an apocalyptic number.

It is an amenable number.

12187053 is a deficient number, since it is larger than the sum of its proper divisors (5828321).

12187053 is an equidigital number, since it uses as much as digits as its factorization.

12187053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12187053 is about 3490.9959896855. The cubic root of 12187053 is about 230.1262885527.

The spelling of 12187053 in words is "twelve million, one hundred eighty-seven thousand, fifty-three".