1113171 has 4 divisors (see below), whose sum is σ = 1484232. Its totient is φ = 742112.

The previous prime is 1113157. The next prime is 1113173. The reversal of 1113171 is 1713111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1713111 = 3 ⋅571037.

It is a cyclic number.

It is not a de Polignac number, because 1113171 - 2⁷ = 1113043 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1113171.

It is not an unprimeable number, because it can be changed into a prime (1113173) 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 3 ways as a sum of consecutive naturals, for example, 185526 + ... + 185531.

It is an arithmetic number, because the mean of its divisors is an integer number (371058).

2^1113171 is an apocalyptic number.

1113171 is a deficient number, since it is larger than the sum of its proper divisors (371061).

1113171 is an equidigital number, since it uses as much as digits as its factorization.

1113171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371060.

The product of its digits is 21, while the sum is 15.

The square root of 1113171 is about 1055.0691920438. The cubic root of 1113171 is about 103.6383828897.

Adding to 1113171 its reverse (1713111), we get a palindrome (2826282).

The spelling of 1113171 in words is "one million, one hundred thirteen thousand, one hundred seventy-one".