545726243 has 2 divisors, whose sum is σ = 545726244. Its totient is φ = 545726242.

The previous prime is 545726179. The next prime is 545726249. The reversal of 545726243 is 342627545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545726243 - 2⁶ = 545726179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545726197 and 545726206.

It is not a weakly prime, because it can be changed into another prime (545726249) 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 as a sum of consecutive naturals, namely, 272863121 + 272863122.

It is an arithmetic number, because the mean of its divisors is an integer number (272863122).

Almost surely, 2^545726243 is an apocalyptic number.

545726243 is a deficient number, since it is larger than the sum of its proper divisors (1).

545726243 is an equidigital number, since it uses as much as digits as its factorization.

545726243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 38.

The square root of 545726243 is about 23360.7842976215. The cubic root of 545726243 is about 817.1935802915.

The spelling of 545726243 in words is "five hundred forty-five million, seven hundred twenty-six thousand, two hundred forty-three".