1218214 has 4 divisors (see below), whose sum is σ = 1827324. Its totient is φ = 609106.

The previous prime is 1218211. The next prime is 1218221. The reversal of 1218214 is 4128121.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1218191 and 1218200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304552 + ... + 304555.

It is an arithmetic number, because the mean of its divisors is an integer number (456831).

2^1218214 is an apocalyptic number.

1218214 is a deficient number, since it is larger than the sum of its proper divisors (609110).

1218214 is an equidigital number, since it uses as much as digits as its factorization.

1218214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609109.

The product of its digits is 128, while the sum is 19.

The square root of 1218214 is about 1103.7273213978. The cubic root of 1218214 is about 106.8008056348.

The spelling of 1218214 in words is "one million, two hundred eighteen thousand, two hundred fourteen".