1121171 has 4 divisors (see below), whose sum is σ = 1180200. Its totient is φ = 1062144.

The previous prime is 1121147. The next prime is 1121173. The reversal of 1121171 is 1711211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121171 - 2¹⁴ = 1104787 is a prime.

It is a super-2 number, since 2×1121171² = 2514048822482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29486 + ... + 29523.

It is an arithmetic number, because the mean of its divisors is an integer number (295050).

2^1121171 is an apocalyptic number.

1121171 is a deficient number, since it is larger than the sum of its proper divisors (59029).

1121171 is an equidigital number, since it uses as much as digits as its factorization.

1121171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59028.

The product of its digits is 14, while the sum is 14.

The square root of 1121171 is about 1058.8536253893. The cubic root of 1121171 is about 103.8860623509.

Adding to 1121171 its reverse (1711211), we get a palindrome (2832382).

The spelling of 1121171 in words is "one million, one hundred twenty-one thousand, one hundred seventy-one".