1386243 has 6 divisors (see below), whose sum is σ = 2002364. Its totient is φ = 924156.

The previous prime is 1386239. The next prime is 1386263. The reversal of 1386243 is 3426831.

It is a happy number.

1386243 is a `hidden beast` number, since 1 + 38 + 624 + 3 = 666.

It is not a de Polignac number, because 1386243 - 2² = 1386239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1386223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77005 + ... + 77022.

2^1386243 is an apocalyptic number.

1386243 is a deficient number, since it is larger than the sum of its proper divisors (616121).

1386243 is a wasteful number, since it uses less digits than its factorization.

1386243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154033 (or 154030 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1386243 is about 1177.3882112540. The cubic root of 1386243 is about 111.5012635006.

The spelling of 1386243 in words is "one million, three hundred eighty-six thousand, two hundred forty-three".