545046637 has 2 divisors, whose sum is σ = 545046638. Its totient is φ = 545046636.

The previous prime is 545046611. The next prime is 545046643. The reversal of 545046637 is 736640545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292204836 + 252841801 = 17094^2 + 15901^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545046637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545046637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545046137) 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, 272523318 + 272523319.

It is an arithmetic number, because the mean of its divisors is an integer number (272523319).

Almost surely, 2^545046637 is an apocalyptic number.

It is an amenable number.

545046637 is a deficient number, since it is larger than the sum of its proper divisors (1).

545046637 is an equidigital number, since it uses as much as digits as its factorization.

545046637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 545046637 is about 23346.2338932857. The cubic root of 545046637 is about 816.8542157808.

The spelling of 545046637 in words is "five hundred forty-five million, forty-six thousand, six hundred thirty-seven".