1065543 has 12 divisors (see below), whose sum is σ = 1510440. Its totient is φ = 668032.

The previous prime is 1065529. The next prime is 1065557. The reversal of 1065543 is 3455601.

It is an interprime number because it is at equal distance from previous prime (1065529) and next prime (1065557).

It is not a de Polignac number, because 1065543 - 2⁴ = 1065527 is a prime.

It is a super-2 number, since 2×1065543² = 2270763769698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253 + ... + 1481.

It is an arithmetic number, because the mean of its divisors is an integer number (125870).

2^1065543 is an apocalyptic number.

1065543 is a deficient number, since it is larger than the sum of its proper divisors (444897).

1065543 is a wasteful number, since it uses less digits than its factorization.

1065543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1065543 is about 1032.2514228617. The cubic root of 1065543 is about 102.1387001981.

The spelling of 1065543 in words is "one million, sixty-five thousand, five hundred forty-three".