545121079 has 2 divisors, whose sum is σ = 545121080. Its totient is φ = 545121078.

The previous prime is 545121061. The next prime is 545121103. The reversal of 545121079 is 970121545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545121079 - 2¹⁵ = 545088311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545121979) 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, 272560539 + 272560540.

It is an arithmetic number, because the mean of its divisors is an integer number (272560540).

Almost surely, 2^545121079 is an apocalyptic number.

545121079 is a deficient number, since it is larger than the sum of its proper divisors (1).

545121079 is an equidigital number, since it uses as much as digits as its factorization.

545121079 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 545121079 is about 23347.8281431057. The cubic root of 545121079 is about 816.8914025028.

The spelling of 545121079 in words is "five hundred forty-five million, one hundred twenty-one thousand, seventy-nine".