1355545543 has 16 divisors (see below), whose sum is σ = 1521662112. Its totient is φ = 1197040000.

The previous prime is 1355545511. The next prime is 1355545553. The reversal of 1355545543 is 3455455531.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1355545543 - 2⁵ = 1355545511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1355545496 and 1355545505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355545553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47373 + ... + 70393.

It is an arithmetic number, because the mean of its divisors is an integer number (95103882).

Almost surely, 2^1355545543 is an apocalyptic number.

1355545543 is a deficient number, since it is larger than the sum of its proper divisors (166116569).

1355545543 is a wasteful number, since it uses less digits than its factorization.

1355545543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23186.

The product of its digits is 450000, while the sum is 40.

The square root of 1355545543 is about 36817.7340829117. The cubic root of 1355545543 is about 1106.7207121575.

The spelling of 1355545543 in words is "one billion, three hundred fifty-five million, five hundred forty-five thousand, five hundred forty-three".