1053543 has 8 divisors (see below), whose sum is σ = 1437568. Its totient is φ = 685944.

The previous prime is 1053539. The next prime is 1053551. The reversal of 1053543 is 3453501.

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

It is not a de Polignac number, because 1053543 - 2² = 1053539 is a prime.

It is a super-2 number, since 2×1053543² = 2219905705698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053583) 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, 3955 + ... + 4212.

It is an arithmetic number, because the mean of its divisors is an integer number (179696).

2^1053543 is an apocalyptic number.

1053543 is a deficient number, since it is larger than the sum of its proper divisors (384025).

1053543 is an equidigital number, since it uses as much as digits as its factorization.

1053543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8213.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 1053543 is about 1026.4224276583. The cubic root of 1053543 is about 101.7538277290.

It can be divided in two parts, 1053 and 543, that added together give a triangular number (1596 = T₅₆).

The spelling of 1053543 in words is "one million, fifty-three thousand, five hundred forty-three".