1043435243 has 4 divisors (see below), whose sum is σ = 1044167880. Its totient is φ = 1042702608.

The previous prime is 1043435233. The next prime is 1043435249. The reversal of 1043435243 is 3425343401.

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 1043435243 - 2¹⁶ = 1043369707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043435249) 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, 364178 + ... + 367031.

It is an arithmetic number, because the mean of its divisors is an integer number (261041970).

Almost surely, 2^1043435243 is an apocalyptic number.

1043435243 is a deficient number, since it is larger than the sum of its proper divisors (732637).

1043435243 is an equidigital number, since it uses as much as digits as its factorization.

1043435243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732636.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 1043435243 is about 32302.2482654072. The cubic root of 1043435243 is about 1014.2737062738.

Adding to 1043435243 its reverse (3425343401), we get a palindrome (4468778644).

The spelling of 1043435243 in words is "one billion, forty-three million, four hundred thirty-five thousand, two hundred forty-three".