545121103 has 2 divisors, whose sum is σ = 545121104. Its totient is φ = 545121102.

The previous prime is 545121079. The next prime is 545121121. The reversal of 545121103 is 301121545.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545121103 - 2⁹ = 545120591 is a prime.

It is a super-3 number, since 3×545121103³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545121403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272560551 + 272560552.

It is an arithmetic number, because the mean of its divisors is an integer number (272560552).

Almost surely, 2^545121103 is an apocalyptic number.

545121103 is a deficient number, since it is larger than the sum of its proper divisors (1).

545121103 is an equidigital number, since it uses as much as digits as its factorization.

545121103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 545121103 is about 23347.8286570722. The cubic root of 545121103 is about 816.8914144912.

Adding to 545121103 its reverse (301121545), we get a palindrome (846242648).

The spelling of 545121103 in words is "five hundred forty-five million, one hundred twenty-one thousand, one hundred three".