601009 has 4 divisors (see below), whose sum is σ = 609316. Its totient is φ = 592704.

The previous prime is 600983. The next prime is 601021. The reversal of 601009 is 900106.

601009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222784 + 378225 = 472^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 601009 - 2⁷ = 600881 is a prime.

It is a super-2 number, since 2×601009² = 722423636162, which contains 22 as substring.

It is a Duffinian number.

601009 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 600983 and 601001.

It is not an unprimeable number, because it can be changed into a prime (601039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4044 + ... + 4189.

It is an arithmetic number, because the mean of its divisors is an integer number (152329).

2⁶⁰¹⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

601009 is a deficient number, since it is larger than the sum of its proper divisors (8307).

601009 is an equidigital number, since it uses as much as digits as its factorization.

601009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8306.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 601009 is about 775.2477023507. The cubic root of 601009 is about 84.3905191390.

The spelling of 601009 in words is "six hundred one thousand, nine".