545110145381 has 2 divisors, whose sum is σ = 545110145382. Its totient is φ = 545110145380.

The previous prime is 545110145357. The next prime is 545110145431. The reversal of 545110145381 is 183541011545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452323502500 + 92786642881 = 672550^2 + 304609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545110145381 is a prime.

It is a super-2 number, since 2×545110145381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545110145681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272555072690 + 272555072691.

It is an arithmetic number, because the mean of its divisors is an integer number (272555072691).

Almost surely, 2^545110145381 is an apocalyptic number.

It is an amenable number.

545110145381 is a deficient number, since it is larger than the sum of its proper divisors (1).

545110145381 is an equidigital number, since it uses as much as digits as its factorization.

545110145381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48000, while the sum is 38.

The spelling of 545110145381 in words is "five hundred forty-five billion, one hundred ten million, one hundred forty-five thousand, three hundred eighty-one".