145593394577 has 2 divisors, whose sum is σ = 145593394578. Its totient is φ = 145593394576.

The previous prime is 145593394543. The next prime is 145593394589. The reversal of 145593394577 is 775493395541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124244970256 + 21348424321 = 352484^2 + 146111^2 .

It is an emirp because it is prime and its reverse (775493395541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145593394577 is a prime.

It is not a weakly prime, because it can be changed into another prime (145593396577) 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, 72796697288 + 72796697289.

It is an arithmetic number, because the mean of its divisors is an integer number (72796697289).

Almost surely, 2^145593394577 is an apocalyptic number.

It is an amenable number.

145593394577 is a deficient number, since it is larger than the sum of its proper divisors (1).

145593394577 is an equidigital number, since it uses as much as digits as its factorization.

145593394577 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71442000, while the sum is 62.

The spelling of 145593394577 in words is "one hundred forty-five billion, five hundred ninety-three million, three hundred ninety-four thousand, five hundred seventy-seven".