612218 has 8 divisors (see below), whose sum is σ = 966720. Its totient is φ = 289980.

The previous prime is 612217. The next prime is 612223. The reversal of 612218 is 812216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 612218.

It is not an unprimeable number, because it can be changed into a prime (612217) 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, 8018 + ... + 8093.

It is an arithmetic number, because the mean of its divisors is an integer number (120840).

2⁶¹²²¹⁸ is an apocalyptic number.

612218 is a deficient number, since it is larger than the sum of its proper divisors (354502).

612218 is a wasteful number, since it uses less digits than its factorization.

612218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16132.

The product of its digits is 192, while the sum is 20.

The square root of 612218 is about 782.4436081917. The cubic root of 612218 is about 84.9119272293.

The spelling of 612218 in words is "six hundred twelve thousand, two hundred eighteen".