545290117 has 2 divisors, whose sum is σ = 545290118. Its totient is φ = 545290116.

The previous prime is 545290091. The next prime is 545290157. The reversal of 545290117 is 711092545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 524913921 + 20376196 = 22911^2 + 4514^2 .

It is a cyclic number.

It is not a de Polignac number, because 545290117 - 2¹⁹ = 544765829 is a prime.

It is equal to p_28611088 and since 545290117 and 28611088 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545290157) 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, 272645058 + 272645059.

It is an arithmetic number, because the mean of its divisors is an integer number (272645059).

Almost surely, 2^545290117 is an apocalyptic number.

It is an amenable number.

545290117 is a deficient number, since it is larger than the sum of its proper divisors (1).

545290117 is an equidigital number, since it uses as much as digits as its factorization.

545290117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 545290117 is about 23351.4478566105. The cubic root of 545290117 is about 816.9758310965.

The spelling of 545290117 in words is "five hundred forty-five million, two hundred ninety thousand, one hundred seventeen".