11442187 has 2 divisors, whose sum is σ = 11442188. Its totient is φ = 11442186.

The previous prime is 11442181. The next prime is 11442191. The reversal of 11442187 is 78124411.

It is a strong prime.

It is an emirp because it is prime and its reverse (78124411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11442187 - 2¹⁹ = 10917899 is a prime.

It is not a weakly prime, because it can be changed into another prime (11442181) 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, 5721093 + 5721094.

It is an arithmetic number, because the mean of its divisors is an integer number (5721094).

Almost surely, 2^11442187 is an apocalyptic number.

11442187 is a deficient number, since it is larger than the sum of its proper divisors (1).

11442187 is an equidigital number, since it uses as much as digits as its factorization.

11442187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 28.

The square root of 11442187 is about 3382.6301896601. The cubic root of 11442187 is about 225.3389918886.

Adding to 11442187 its reverse (78124411), we get a palindrome (89566598).

The spelling of 11442187 in words is "eleven million, four hundred forty-two thousand, one hundred eighty-seven".