545019907 has 2 divisors, whose sum is σ = 545019908. Its totient is φ = 545019906.

The previous prime is 545019901. The next prime is 545019919. The reversal of 545019907 is 709910545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545019907 - 2³ = 545019899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545019907.

It is not a weakly prime, because it can be changed into another prime (545019901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272509953 + 272509954.

It is an arithmetic number, because the mean of its divisors is an integer number (272509954).

Almost surely, 2^545019907 is an apocalyptic number.

545019907 is a deficient number, since it is larger than the sum of its proper divisors (1).

545019907 is an equidigital number, since it uses as much as digits as its factorization.

545019907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 545019907 is about 23345.6614170599. The cubic root of 545019907 is about 816.8408622628.

The spelling of 545019907 in words is "five hundred forty-five million, nineteen thousand, nine hundred seven".