545157047 has 2 divisors, whose sum is σ = 545157048. Its totient is φ = 545157046.

The previous prime is 545157007. The next prime is 545157049. The reversal of 545157047 is 740751545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545157047 - 2⁸ = 545156791 is a prime.

Together with 545157049, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545157047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545157049) 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 as a sum of consecutive naturals, namely, 272578523 + 272578524.

It is an arithmetic number, because the mean of its divisors is an integer number (272578524).

Almost surely, 2^545157047 is an apocalyptic number.

545157047 is a deficient number, since it is larger than the sum of its proper divisors (1).

545157047 is an equidigital number, since it uses as much as digits as its factorization.

545157047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98000, while the sum is 38.

The square root of 545157047 is about 23348.5983947645. The cubic root of 545157047 is about 816.9093687278.

The spelling of 545157047 in words is "five hundred forty-five million, one hundred fifty-seven thousand, forty-seven".