12187073 has 2 divisors, whose sum is σ = 12187074. Its totient is φ = 12187072.

The previous prime is 12187069. The next prime is 12187117. The reversal of 12187073 is 37078121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10705984 + 1481089 = 3272^2 + 1217^2 .

It is an emirp because it is prime and its reverse (37078121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12187073 - 2² = 12187069 is a prime.

It is not a weakly prime, because it can be changed into another prime (12187003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6093536 + 6093537.

It is an arithmetic number, because the mean of its divisors is an integer number (6093537).

Almost surely, 2^12187073 is an apocalyptic number.

It is an amenable number.

12187073 is a deficient number, since it is larger than the sum of its proper divisors (1).

12187073 is an equidigital number, since it uses as much as digits as its factorization.

12187073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 12187073 is about 3490.9988541963. The cubic root of 12187073 is about 230.1264144383.

The spelling of 12187073 in words is "twelve million, one hundred eighty-seven thousand, seventy-three".