545215305461 has 2 divisors, whose sum is σ = 545215305462. Its totient is φ = 545215305460.

The previous prime is 545215305433. The next prime is 545215305577. The reversal of 545215305461 is 164503512545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377357118436 + 167858187025 = 614294^2 + 409705^2 .

It is a cyclic number.

It is not a de Polignac number, because 545215305461 - 2³⁴ = 528035436277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545215305431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272607652730 + 272607652731.

It is an arithmetic number, because the mean of its divisors is an integer number (272607652731).

Almost surely, 2^545215305461 is an apocalyptic number.

It is an amenable number.

545215305461 is a deficient number, since it is larger than the sum of its proper divisors (1).

545215305461 is an equidigital number, since it uses as much as digits as its factorization.

545215305461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 545215305461 in words is "five hundred forty-five billion, two hundred fifteen million, three hundred five thousand, four hundred sixty-one".