1386543 has 4 divisors (see below), whose sum is σ = 1848728. Its totient is φ = 924360.

The previous prime is 1386499. The next prime is 1386551. The reversal of 1386543 is 3456831.

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

It is not a de Polignac number, because 1386543 - 2⁶ = 1386479 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1386543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231088 + ... + 231093.

It is an arithmetic number, because the mean of its divisors is an integer number (462182).

2^1386543 is an apocalyptic number.

1386543 is a deficient number, since it is larger than the sum of its proper divisors (462185).

1386543 is an equidigital number, since it uses as much as digits as its factorization.

1386543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462184.

The product of its digits is 8640, while the sum is 30.

The square root of 1386543 is about 1177.5156049921. The cubic root of 1386543 is about 111.5093063344.

The spelling of 1386543 in words is "one million, three hundred eighty-six thousand, five hundred forty-three".