1117445 has 12 divisors (see below), whose sum is σ = 1560204. Its totient is φ = 766080.

The previous prime is 1117439. The next prime is 1117451. The reversal of 1117445 is 5447111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1117439) and next prime (1117451).

It can be written as a sum of positive squares in 2 ways, for example, as 388129 + 729316 = 623^2 + 854^2 .

It is not a de Polignac number, because 1117445 - 2¹² = 1113349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2036 + ... + 2525.

It is an arithmetic number, because the mean of its divisors is an integer number (130017).

2^1117445 is an apocalyptic number.

It is an amenable number.

1117445 is a deficient number, since it is larger than the sum of its proper divisors (442759).

1117445 is an equidigital number, since it uses as much as digits as its factorization.

1117445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580 (or 4573 counting only the distinct ones).

The product of its digits is 560, while the sum is 23.

The square root of 1117445 is about 1057.0927111659. The cubic root of 1117445 is about 103.7708527302.

The spelling of 1117445 in words is "one million, one hundred seventeen thousand, four hundred forty-five".