1385543 has 8 divisors (see below), whose sum is σ = 1461888. Its totient is φ = 1310584.

The previous prime is 1385521. The next prime is 1385561. The reversal of 1385543 is 3455831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1385543 - 2⁶ = 1385479 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2180 + ... + 2742.

It is an arithmetic number, because the mean of its divisors is an integer number (182736).

2^1385543 is an apocalyptic number.

1385543 is a deficient number, since it is larger than the sum of its proper divisors (76345).

1385543 is a wasteful number, since it uses less digits than its factorization.

1385543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693.

The product of its digits is 7200, while the sum is 29.

The square root of 1385543 is about 1177.0909055804. The cubic root of 1385543 is about 111.4824923747.

The spelling of 1385543 in words is "one million, three hundred eighty-five thousand, five hundred forty-three".