545251361 has 2 divisors, whose sum is σ = 545251362. Its totient is φ = 545251360.

The previous prime is 545251339. The next prime is 545251451. The reversal of 545251361 is 163152545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278255761 + 266995600 = 16681^2 + 16340^2 .

It is a cyclic number.

It is not a de Polignac number, because 545251361 - 2⁶ = 545251297 is a prime.

It is not a weakly prime, because it can be changed into another prime (545251331) 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, 272625680 + 272625681.

It is an arithmetic number, because the mean of its divisors is an integer number (272625681).

Almost surely, 2^545251361 is an apocalyptic number.

It is an amenable number.

545251361 is a deficient number, since it is larger than the sum of its proper divisors (1).

545251361 is an equidigital number, since it uses as much as digits as its factorization.

545251361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 32.

The square root of 545251361 is about 23350.6180003871. The cubic root of 545251361 is about 816.9564753661.

The spelling of 545251361 in words is "five hundred forty-five million, two hundred fifty-one thousand, three hundred sixty-one".