1009345 has 8 divisors (see below), whose sum is σ = 1253160. Its totient is φ = 779520.

The previous prime is 1009343. The next prime is 1009357. The reversal of 1009345 is 5439001.

It can be written as a sum of positive squares in 4 ways, for example, as 219024 + 790321 = 468^2 + 889^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1009345 - 2¹ = 1009343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1009343) 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 7 ways as a sum of consecutive naturals, for example, 3336 + ... + 3625.

It is an arithmetic number, because the mean of its divisors is an integer number (156645).

2^1009345 is an apocalyptic number.

It is an amenable number.

1009345 is a deficient number, since it is larger than the sum of its proper divisors (243815).

1009345 is an equidigital number, since it uses as much as digits as its factorization.

1009345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6995.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1009345 is about 1004.6616345815. The cubic root of 1009345 is about 100.3105346839.

The spelling of 1009345 in words is "one million, nine thousand, three hundred forty-five".