1121167 has 4 divisors (see below), whose sum is σ = 1187136. Its totient is φ = 1055200.

The previous prime is 1121147. The next prime is 1121173. The reversal of 1121167 is 7611211.

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 1121167 - 2¹⁹ = 596879 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 (1121147) 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, 32959 + ... + 32992.

It is an arithmetic number, because the mean of its divisors is an integer number (296784).

2^1121167 is an apocalyptic number.

1121167 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1121167 is a deficient number, since it is larger than the sum of its proper divisors (65969).

1121167 is an equidigital number, since it uses as much as digits as its factorization.

1121167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65968.

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

The square root of 1121167 is about 1058.8517365524. The cubic root of 1121167 is about 103.8859388060.

Adding to 1121167 its reverse (7611211), we get a palindrome (8732378).

The spelling of 1121167 in words is "one million, one hundred twenty-one thousand, one hundred sixty-seven".