145042650161 has 2 divisors, whose sum is σ = 145042650162. Its totient is φ = 145042650160.

The previous prime is 145042650157. The next prime is 145042650283. The reversal of 145042650161 is 161056240541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134876969536 + 10165680625 = 367256^2 + 100825^2 .

It is a cyclic number.

It is not a de Polignac number, because 145042650161 - 2² = 145042650157 is a prime.

It is not a weakly prime, because it can be changed into another prime (145042655161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72521325080 + 72521325081.

It is an arithmetic number, because the mean of its divisors is an integer number (72521325081).

Almost surely, 2^145042650161 is an apocalyptic number.

It is an amenable number.

145042650161 is a deficient number, since it is larger than the sum of its proper divisors (1).

145042650161 is an equidigital number, since it uses as much as digits as its factorization.

145042650161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 145042650161 in words is "one hundred forty-five billion, forty-two million, six hundred fifty thousand, one hundred sixty-one".