611001 has 12 divisors (see below), whose sum is σ = 913380. Its totient is φ = 393120.

The previous prime is 610993. The next prime is 611011. The reversal of 611001 is 100116.

611001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 360000 + 251001 = 600^2 + 501^2 .

It is not a de Polignac number, because 611001 - 2³ = 610993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (611011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 910 + ... + 1431.

It is an arithmetic number, because the mean of its divisors is an integer number (76115).

2⁶¹¹⁰⁰¹ is an apocalyptic number.

It is an amenable number.

611001 is a deficient number, since it is larger than the sum of its proper divisors (302379).

611001 is a wasteful number, since it uses less digits than its factorization.

611001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2376 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 611001 is about 781.6655294946. The cubic root of 611001 is about 84.8556257351.

Adding to 611001 its reverse (100116), we get a palindrome (711117).

The spelling of 611001 in words is "six hundred eleven thousand, one".