1043362543 has 4 divisors (see below), whose sum is σ = 1044177048. Its totient is φ = 1042548040.

The previous prime is 1043362477. The next prime is 1043362553. The reversal of 1043362543 is 3452633401.

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

It is a cyclic number.

It is not a de Polignac number, because 1043362543 - 2⁹ = 1043362031 is a prime.

It is a super-2 number, since 2×1043362543² = 2177210792270853698, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043362553) 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, 405328 + ... + 407893.

It is an arithmetic number, because the mean of its divisors is an integer number (261044262).

Almost surely, 2^1043362543 is an apocalyptic number.

1043362543 is a deficient number, since it is larger than the sum of its proper divisors (814505).

1043362543 is an equidigital number, since it uses as much as digits as its factorization.

1043362543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814504.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 1043362543 is about 32301.1229371364. The cubic root of 1043362543 is about 1014.2501496575.

Adding to 1043362543 its reverse (3452633401), we get a palindrome (4495995944).

The spelling of 1043362543 in words is "one billion, forty-three million, three hundred sixty-two thousand, five hundred forty-three".