1284243 has 16 divisors (see below), whose sum is σ = 1796256. Its totient is φ = 815360.

The previous prime is 1284223. The next prime is 1284263. The reversal of 1284243 is 3424821.

It is an interprime number because it is at equal distance from previous prime (1284223) and next prime (1284263).

It is a cyclic number.

It is not a de Polignac number, because 1284243 - 2⁵ = 1284211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1284223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6421 + ... + 6617.

It is an arithmetic number, because the mean of its divisors is an integer number (112266).

2^1284243 is an apocalyptic number.

1284243 is a deficient number, since it is larger than the sum of its proper divisors (512013).

1284243 is a wasteful number, since it uses less digits than its factorization.

1284243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294.

The product of its digits is 1536, while the sum is 24.

The square root of 1284243 is about 1133.2444572995. The cubic root of 1284243 is about 108.6965439486.

It can be divided in two parts, 128 and 4243, that added together give a triangular number (4371 = T₉₃).

The spelling of 1284243 in words is "one million, two hundred eighty-four thousand, two hundred forty-three".