1120509 has 24 divisors (see below), whose sum is σ = 1782872. Its totient is φ = 673920.

The previous prime is 1120507. The next prime is 1120513. The reversal of 1120509 is 9050211.

It can be written as a sum of positive squares in 4 ways, for example, as 49284 + 1071225 = 222^2 + 1035^2 .

It is not a de Polignac number, because 1120509 - 2¹ = 1120507 is a prime.

1120509 is an undulating number in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1120491 and 1120500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120501) 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 23 ways as a sum of consecutive naturals, for example, 7059 + ... + 7215.

2^1120509 is an apocalyptic number.

It is an amenable number.

1120509 is a deficient number, since it is larger than the sum of its proper divisors (662363).

1120509 is a wasteful number, since it uses less digits than its factorization.

1120509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 1120509 is about 1058.5409770056. The cubic root of 1120509 is about 103.8656116752.

The spelling of 1120509 in words is "one million, one hundred twenty thousand, five hundred nine".