545428423 has 2 divisors, whose sum is σ = 545428424. Its totient is φ = 545428422.

The previous prime is 545428399. The next prime is 545428439. The reversal of 545428423 is 324824545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545428423 - 2¹⁷ = 545297351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545428123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272714211 + 272714212.

It is an arithmetic number, because the mean of its divisors is an integer number (272714212).

Almost surely, 2^545428423 is an apocalyptic number.

545428423 is a deficient number, since it is larger than the sum of its proper divisors (1).

545428423 is an equidigital number, since it uses as much as digits as its factorization.

545428423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153600, while the sum is 37.

The square root of 545428423 is about 23354.4090698095. The cubic root of 545428423 is about 817.0448971490.

The spelling of 545428423 in words is "five hundred forty-five million, four hundred twenty-eight thousand, four hundred twenty-three".