545186423 has 2 divisors, whose sum is σ = 545186424. Its totient is φ = 545186422.

The previous prime is 545186401. The next prime is 545186441. The reversal of 545186423 is 324681545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545186423 - 2⁶ = 545186359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545186443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272593211 + 272593212.

It is an arithmetic number, because the mean of its divisors is an integer number (272593212).

Almost surely, 2^545186423 is an apocalyptic number.

545186423 is a deficient number, since it is larger than the sum of its proper divisors (1).

545186423 is an equidigital number, since it uses as much as digits as its factorization.

545186423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115200, while the sum is 38.

The square root of 545186423 is about 23349.2274604536. The cubic root of 545186423 is about 816.9240416241.

The spelling of 545186423 in words is "five hundred forty-five million, one hundred eighty-six thousand, four hundred twenty-three".