1346263543 has 4 divisors (see below), whose sum is σ = 1346816160. Its totient is φ = 1345710928.

The previous prime is 1346263519. The next prime is 1346263559. The reversal of 1346263543 is 3453626431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1346263543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346263343) 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, 272638 + ... + 277531.

It is an arithmetic number, because the mean of its divisors is an integer number (336704040).

Almost surely, 2^1346263543 is an apocalyptic number.

1346263543 is a deficient number, since it is larger than the sum of its proper divisors (552617).

1346263543 is an equidigital number, since it uses as much as digits as its factorization.

1346263543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552616.

The product of its digits is 155520, while the sum is 37.

The square root of 1346263543 is about 36691.4641708395. The cubic root of 1346263543 is about 1104.1888611185.

Adding to 1346263543 its reverse (3453626431), we get a palindrome (4799889974).

The spelling of 1346263543 in words is "one billion, three hundred forty-six million, two hundred sixty-three thousand, five hundred forty-three".