1167121 has 4 divisors (see below), whose sum is σ = 1169392. Its totient is φ = 1164852.

The previous prime is 1167083. The next prime is 1167139. The reversal of 1167121 is 1217611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1217611 = 1031 ⋅1181.

It is a cyclic number.

It is not a de Polignac number, because 1167121 - 2⁹ = 1166609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1167421) 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, 46 + ... + 1528.

It is an arithmetic number, because the mean of its divisors is an integer number (292348).

2^1167121 is an apocalyptic number.

It is an amenable number.

1167121 is a deficient number, since it is larger than the sum of its proper divisors (2271).

1167121 is an equidigital number, since it uses as much as digits as its factorization.

1167121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270.

The product of its digits is 84, while the sum is 19.

The square root of 1167121 is about 1080.3337447289. Note that the first 3 decimals coincide. The cubic root of 1167121 is about 105.2863235813.

The spelling of 1167121 in words is "one million, one hundred sixty-seven thousand, one hundred twenty-one".