1355355443 has 16 divisors (see below), whose sum is σ = 1537996320. Its totient is φ = 1184046336.

The previous prime is 1355355439. The next prime is 1355355479. The reversal of 1355355443 is 3445535531.

It is a cyclic number.

It is not a de Polignac number, because 1355355443 - 2² = 1355355439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1355355397 and 1355355406.

It is not an unprimeable number, because it can be changed into a prime (1355355343) 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 15 ways as a sum of consecutive naturals, for example, 313271 + ... + 317567.

It is an arithmetic number, because the mean of its divisors is an integer number (96124770).

Almost surely, 2^1355355443 is an apocalyptic number.

1355355443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1355355443 is a deficient number, since it is larger than the sum of its proper divisors (182640877).

1355355443 is a wasteful number, since it uses less digits than its factorization.

1355355443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606.

The product of its digits is 270000, while the sum is 38.

The square root of 1355355443 is about 36815.1523560612. The cubic root of 1355355443 is about 1106.6689746992.

The spelling of 1355355443 in words is "one billion, three hundred fifty-five million, three hundred fifty-five thousand, four hundred forty-three".