1121065 has 24 divisors (see below), whose sum is σ = 1580040. Its totient is φ = 760320.

The previous prime is 1121051. The next prime is 1121083. The reversal of 1121065 is 5601211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 327184 + 793881 = 572^2 + 891^2 .

It is not a de Polignac number, because 1121065 - 2⁵ = 1121033 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10231 + ... + 10339.

It is an arithmetic number, because the mean of its divisors is an integer number (65835).

2^1121065 is an apocalyptic number.

It is an amenable number.

1121065 is a deficient number, since it is larger than the sum of its proper divisors (458975).

1121065 is a wasteful number, since it uses less digits than its factorization.

1121065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1121065 is about 1058.8035700733. The cubic root of 1121065 is about 103.8827883128.

Adding to 1121065 its reverse (5601211), we get a palindrome (6722276).

The spelling of 1121065 in words is "one million, one hundred twenty-one thousand, sixty-five".