11158287 has 8 divisors (see below), whose sum is σ = 17003136. Its totient is φ = 6376152.

The previous prime is 11158267. The next prime is 11158291. The reversal of 11158287 is 78285111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11158287 - 2¹² = 11154191 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11158237) 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 7 ways as a sum of consecutive naturals, for example, 265653 + ... + 265694.

It is an arithmetic number, because the mean of its divisors is an integer number (2125392).

Almost surely, 2^11158287 is an apocalyptic number.

11158287 is a deficient number, since it is larger than the sum of its proper divisors (5844849).

11158287 is an equidigital number, since it uses as much as digits as its factorization.

11158287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531357.

The product of its digits is 4480, while the sum is 33.

The square root of 11158287 is about 3340.4022212901. The cubic root of 11158287 is about 223.4596817302.

The spelling of 11158287 in words is "eleven million, one hundred fifty-eight thousand, two hundred eighty-seven".