1355311543 has 4 divisors (see below), whose sum is σ = 1355395888. Its totient is φ = 1355227200.

The previous prime is 1355311513. The next prime is 1355311561. The reversal of 1355311543 is 3451135531.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1355311543 - 2⁵ = 1355311511 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 (1355311513) 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, 9771 + ... + 52972.

It is an arithmetic number, because the mean of its divisors is an integer number (338848972).

Almost surely, 2^1355311543 is an apocalyptic number.

1355311543 is a deficient number, since it is larger than the sum of its proper divisors (84345).

1355311543 is an equidigital number, since it uses as much as digits as its factorization.

1355311543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84344.

The product of its digits is 13500, while the sum is 31.

The square root of 1355311543 is about 36814.5561293356. The cubic root of 1355311543 is about 1106.6570262241.

The spelling of 1355311543 in words is "one billion, three hundred fifty-five million, three hundred eleven thousand, five hundred forty-three".