1043340553 has 4 divisors (see below), whose sum is σ = 1043539200. Its totient is φ = 1043141908.

The previous prime is 1043340509. The next prime is 1043340577. The reversal of 1043340553 is 3550433401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1043340553 - 2⁹ = 1043340041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043340593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91225 + ... + 102022.

It is an arithmetic number, because the mean of its divisors is an integer number (260884800).

Almost surely, 2^1043340553 is an apocalyptic number.

It is an amenable number.

1043340553 is a deficient number, since it is larger than the sum of its proper divisors (198647).

1043340553 is an equidigital number, since it uses as much as digits as its factorization.

1043340553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198646.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 1043340553 is about 32300.7825447001. The cubic root of 1043340553 is about 1014.2430241325.

Adding to 1043340553 its reverse (3550433401), we get a palindrome (4593773954).

The spelling of 1043340553 in words is "one billion, forty-three million, three hundred forty thousand, five hundred fifty-three".