618001 has 4 divisors (see below), whose sum is σ = 654372. Its totient is φ = 581632.

The previous prime is 617983. The next prime is 618029. The reversal of 618001 is 100816.

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 331776 + 286225 = 576^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 618001 - 2⁷ = 617873 is a prime.

It is a super-3 number, since 3×618001³ = 708090533321562003, which contains 333 as substring.

It is a Duffinian number.

618001 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618031) 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, 18160 + ... + 18193.

It is an arithmetic number, because the mean of its divisors is an integer number (163593).

2⁶¹⁸⁰⁰¹ is an apocalyptic number.

It is an amenable number.

618001 is a deficient number, since it is larger than the sum of its proper divisors (36371).

618001 is a wasteful number, since it uses less digits than its factorization.

618001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36370.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 618001 is about 786.1303963084. The cubic root of 618001 is about 85.1784486330.

Adding to 618001 its reverse (100816), we get a palindrome (718817).

The spelling of 618001 in words is "six hundred eighteen thousand, one".