601209 has 16 divisors (see below), whose sum is σ = 1018240. Its totient is φ = 343440.

The previous prime is 601207. The next prime is 601219. The reversal of 601209 is 902106.

601209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 601209 - 2¹ = 601207 is a prime.

It is a super-2 number, since 2×601209² = 722904523362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 601191 and 601200.

It is not an unprimeable number, because it can be changed into a prime (601201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1402 + ... + 1779.

It is an arithmetic number, because the mean of its divisors is an integer number (63640).

2⁶⁰¹²⁰⁹ is an apocalyptic number.

It is an amenable number.

601209 is a deficient number, since it is larger than the sum of its proper divisors (417031).

601209 is a wasteful number, since it uses less digits than its factorization.

601209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197 (or 3191 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 601209 is about 775.3766826517. The cubic root of 601209 is about 84.3998790831.

The spelling of 601209 in words is "six hundred one thousand, two hundred nine".