1214399 has 4 divisors (see below), whose sum is σ = 1219680. Its totient is φ = 1209120.

The previous prime is 1214393. The next prime is 1214401. The reversal of 1214399 is 9934121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2279 + ... + 2760.

It is an arithmetic number, because the mean of its divisors is an integer number (304920).

2^1214399 is an apocalyptic number.

1214399 is a deficient number, since it is larger than the sum of its proper divisors (5281).

1214399 is an equidigital number, since it uses as much as digits as its factorization.

1214399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280.

The product of its digits is 1944, while the sum is 29.

The square root of 1214399 is about 1101.9977313951. The cubic root of 1214399 is about 106.6892020529.

The spelling of 1214399 in words is "one million, two hundred fourteen thousand, three hundred ninety-nine".