1214287 has 4 divisors (see below), whose sum is σ = 1221480. Its totient is φ = 1207096.

The previous prime is 1214281. The next prime is 1214299. The reversal of 1214287 is 7824121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7824121 = 31 ⋅252391.

It is a cyclic number.

It is not a de Polignac number, because 1214287 - 2⁷ = 1214159 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214281) 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 3 ways as a sum of consecutive naturals, for example, 3337 + ... + 3682.

It is an arithmetic number, because the mean of its divisors is an integer number (305370).

2^1214287 is an apocalyptic number.

1214287 is a deficient number, since it is larger than the sum of its proper divisors (7193).

1214287 is an equidigital number, since it uses as much as digits as its factorization.

1214287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7192.

The product of its digits is 896, while the sum is 25.

The square root of 1214287 is about 1101.9469134219. The cubic root of 1214287 is about 106.6859220880.

The spelling of 1214287 in words is "one million, two hundred fourteen thousand, two hundred eighty-seven".