618164 has 18 divisors (see below), whose sum is σ = 1134630. Its totient is φ = 294336.

The previous prime is 618161. The next prime is 618173. The reversal of 618164 is 461816.

It can be written as a sum of positive squares in 3 ways, for example, as 128164 + 490000 = 358^2 + 700^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 618164.

It is not an unprimeable number, because it can be changed into a prime (618161) 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 5 ways as a sum of consecutive naturals, for example, 8432 + ... + 8504.

It is an arithmetic number, because the mean of its divisors is an integer number (63035).

2⁶¹⁸¹⁶⁴ is an apocalyptic number.

It is an amenable number.

618164 is a deficient number, since it is larger than the sum of its proper divisors (516466).

618164 is a wasteful number, since it uses less digits than its factorization.

618164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 104 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 618164 is about 786.2340618416. The cubic root of 618164 is about 85.1859366827.

The spelling of 618164 in words is "six hundred eighteen thousand, one hundred sixty-four".