11995187 has 2 divisors, whose sum is σ = 11995188. Its totient is φ = 11995186.

The previous prime is 11995157. The next prime is 11995201. The reversal of 11995187 is 78159911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11995187 - 2²² = 7800883 is a prime.

It is a super-2 number, since 2×11995187² = 287769022329938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11995147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5997593 + 5997594.

It is an arithmetic number, because the mean of its divisors is an integer number (5997594).

Almost surely, 2^11995187 is an apocalyptic number.

11995187 is a deficient number, since it is larger than the sum of its proper divisors (1).

11995187 is an equidigital number, since it uses as much as digits as its factorization.

11995187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 41.

The square root of 11995187 is about 3463.4068487546. The cubic root of 11995187 is about 228.9122360306.

The spelling of 11995187 in words is "eleven million, nine hundred ninety-five thousand, one hundred eighty-seven".