618189 has 24 divisors (see below), whose sum is σ = 983136. Its totient is φ = 343200.

The previous prime is 618173. The next prime is 618199. The reversal of 618189 is 981816.

It is not a de Polignac number, because 618189 - 2⁴ = 618173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between even and odd.

618189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4654 + ... + 4784.

It is an arithmetic number, because the mean of its divisors is an integer number (40964).

2⁶¹⁸¹⁸⁹ is an apocalyptic number.

It is an amenable number.

618189 is a deficient number, since it is larger than the sum of its proper divisors (364947).

618189 is a wasteful number, since it uses less digits than its factorization.

618189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 158 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 618189 is about 786.2499602544. The cubic root of 618189 is about 85.1870850401.

The spelling of 618189 in words is "six hundred eighteen thousand, one hundred eighty-nine".