11161867 has 2 divisors, whose sum is σ = 11161868. Its totient is φ = 11161866.

The previous prime is 11161859. The next prime is 11161879. The reversal of 11161867 is 76816111.

It is a weak prime.

It is an emirp because it is prime and its reverse (76816111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11161867 - 2³ = 11161859 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11161807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580933 + 5580934.

It is an arithmetic number, because the mean of its divisors is an integer number (5580934).

Almost surely, 2^11161867 is an apocalyptic number.

11161867 is a deficient number, since it is larger than the sum of its proper divisors (1).

11161867 is an equidigital number, since it uses as much as digits as its factorization.

11161867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 31.

The square root of 11161867 is about 3340.9380419277. The cubic root of 11161867 is about 223.4835772774.

Adding to 11161867 its reverse (76816111), we get a palindrome (87977978).

The spelling of 11161867 in words is "eleven million, one hundred sixty-one thousand, eight hundred sixty-seven".