618243 has 4 divisors (see below), whose sum is σ = 824328. Its totient is φ = 412160.

The previous prime is 618229. The next prime is 618253. The reversal of 618243 is 342816.

It is a happy number.

618243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 618243 - 2⁴ = 618227 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (618253) 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, 103038 + ... + 103043.

It is an arithmetic number, because the mean of its divisors is an integer number (206082).

2⁶¹⁸²⁴³ is an apocalyptic number.

618243 is a deficient number, since it is larger than the sum of its proper divisors (206085).

618243 is a wasteful number, since it uses less digits than its factorization.

618243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206084.

The product of its digits is 1152, while the sum is 24.

The square root of 618243 is about 786.2842997288. The cubic root of 618243 is about 85.1895653866.

It can be divided in two parts, 618 and 243, that added together give a triangular number (861 = T₄₁).

The spelling of 618243 in words is "six hundred eighteen thousand, two hundred forty-three".