12187051 has 2 divisors, whose sum is σ = 12187052. Its totient is φ = 12187050.

The previous prime is 12187013. The next prime is 12187057. The reversal of 12187051 is 15078121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12187051 - 2²¹ = 10089899 is a prime.

It is not a weakly prime, because it can be changed into another prime (12187057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6093525 + 6093526.

It is an arithmetic number, because the mean of its divisors is an integer number (6093526).

Almost surely, 2^12187051 is an apocalyptic number.

12187051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12187051 is an equidigital number, since it uses as much as digits as its factorization.

12187051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 12187051 is about 3490.9957032343. The cubic root of 12187051 is about 230.1262759641.

The spelling of 12187051 in words is "twelve million, one hundred eighty-seven thousand, fifty-one".