545341403081 has 2 divisors, whose sum is σ = 545341403082. Its totient is φ = 545341403080.

The previous prime is 545341403077. The next prime is 545341403107. The reversal of 545341403081 is 180304143545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 538587193225 + 6754209856 = 733885^2 + 82184^2 .

It is a cyclic number.

It is not a de Polignac number, because 545341403081 - 2² = 545341403077 is a prime.

It is a super-2 number, since 2×545341403081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545341403011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272670701540 + 272670701541.

It is an arithmetic number, because the mean of its divisors is an integer number (272670701541).

Almost surely, 2^545341403081 is an apocalyptic number.

It is an amenable number.

545341403081 is a deficient number, since it is larger than the sum of its proper divisors (1).

545341403081 is an equidigital number, since it uses as much as digits as its factorization.

545341403081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 545341403081 in words is "five hundred forty-five billion, three hundred forty-one million, four hundred three thousand, eighty-one".