2045454543 has 18 divisors (see below), whose sum is σ = 3247559952. Its totient is φ = 1239668760.

The previous prime is 2045454533. The next prime is 2045454559. The reversal of 2045454543 is 3454545402.

2045454543 is a `hidden beast` number, since 20 + 4 + 54 + 545 + 43 = 666.

It is not a de Polignac number, because 2045454543 - 2⁴ = 2045454527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2045454498 and 2045454507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045454533) 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 17 ways as a sum of consecutive naturals, for example, 938055 + ... + 940232.

Almost surely, 2^2045454543 is an apocalyptic number.

2045454543 is a deficient number, since it is larger than the sum of its proper divisors (1202105409).

2045454543 is a wasteful number, since it uses less digits than its factorization.

2045454543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878315 (or 1878301 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

The square root of 2045454543 is about 45226.7016595285. The cubic root of 2045454543 is about 1269.3944956994.

Adding to 2045454543 its reverse (3454545402), we get a palindrome (5499999945).

The spelling of 2045454543 in words is "two billion, forty-five million, four hundred fifty-four thousand, five hundred forty-three".