11157867 has 12 divisors (see below), whose sum is σ = 18419440. Its totient is φ = 6375888.

The previous prime is 11157827. The next prime is 11157869. The reversal of 11157867 is 76875111.

It is a happy number.

It is not a de Polignac number, because 11157867 - 2⁶ = 11157803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11157869) 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 in 11 ways as a sum of consecutive naturals, for example, 88492 + ... + 88617.

Almost surely, 2^11157867 is an apocalyptic number.

11157867 is a deficient number, since it is larger than the sum of its proper divisors (7261573).

11157867 is a wasteful number, since it uses less digits than its factorization.

11157867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177122 (or 177119 counting only the distinct ones).

The product of its digits is 11760, while the sum is 36.

The square root of 11157867 is about 3340.3393540178. The cubic root of 11157867 is about 223.4568780070.

The spelling of 11157867 in words is "eleven million, one hundred fifty-seven thousand, eight hundred sixty-seven".