45054144354221 has 2 divisors, whose sum is σ = 45054144354222. Its totient is φ = 45054144354220.

The previous prime is 45054144354161. The next prime is 45054144354257. The reversal of 45054144354221 is 12245344145054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35681447826025 + 9372696528196 = 5973395^2 + 3061486^2 .

It is a cyclic number.

It is not a de Polignac number, because 45054144354221 - 2⁶ = 45054144354157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45054144357221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22527072177110 + 22527072177111.

It is an arithmetic number, because the mean of its divisors is an integer number (22527072177111).

Almost surely, 2^{45054144354221} is an apocalyptic number.

It is an amenable number.

45054144354221 is a deficient number, since it is larger than the sum of its proper divisors (1).

45054144354221 is an equidigital number, since it uses as much as digits as its factorization.

45054144354221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536000, while the sum is 44.

Adding to 45054144354221 its reverse (12245344145054), we get a palindrome (57299488499275).

The spelling of 45054144354221 in words is "forty-five trillion, fifty-four billion, one hundred forty-four million, three hundred fifty-four thousand, two hundred twenty-one".