1217214 has 16 divisors (see below), whose sum is σ = 2705040. Its totient is φ = 405720.

The previous prime is 1217213. The next prime is 1217219. The reversal of 1217214 is 4127121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217213) 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 7 ways as a sum of consecutive naturals, for example, 11217 + ... + 11324.

It is an arithmetic number, because the mean of its divisors is an integer number (169065).

2^1217214 is an apocalyptic number.

1217214 is an abundant number, since it is smaller than the sum of its proper divisors (1487826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1217214 is a wasteful number, since it uses less digits than its factorization.

1217214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22552 (or 22546 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 1217214 is about 1103.2742179531. The cubic root of 1217214 is about 106.7715743059.

It can be divided in two parts, 1217 and 214, that added together give a triangular number (1431 = T₅₃).

The spelling of 1217214 in words is "one million, two hundred seventeen thousand, two hundred fourteen".