145035050221 has 2 divisors, whose sum is σ = 145035050222. Its totient is φ = 145035050220.

The previous prime is 145035050201. The next prime is 145035050239. The reversal of 145035050221 is 122050530541.

145035050221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115430062500 + 29604987721 = 339750^2 + 172061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145035050221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145035050221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145035050201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72517525110 + 72517525111.

It is an arithmetic number, because the mean of its divisors is an integer number (72517525111).

Almost surely, 2^145035050221 is an apocalyptic number.

It is an amenable number.

145035050221 is a deficient number, since it is larger than the sum of its proper divisors (1).

145035050221 is an equidigital number, since it uses as much as digits as its factorization.

145035050221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 145035050221 its reverse (122050530541), we get a palindrome (267085580762).

The spelling of 145035050221 in words is "one hundred forty-five billion, thirty-five million, fifty thousand, two hundred twenty-one".