145973427443 has 2 divisors, whose sum is σ = 145973427444. Its totient is φ = 145973427442.

The previous prime is 145973427437. The next prime is 145973427473. The reversal of 145973427443 is 344724379541.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (344724379541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145973427443 is a prime.

It is not a weakly prime, because it can be changed into another prime (145973427433) 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, 72986713721 + 72986713722.

It is an arithmetic number, because the mean of its divisors is an integer number (72986713722).

Almost surely, 2^145973427443 is an apocalyptic number.

145973427443 is a deficient number, since it is larger than the sum of its proper divisors (1).

145973427443 is an equidigital number, since it uses as much as digits as its factorization.

145973427443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 53.

The spelling of 145973427443 in words is "one hundred forty-five billion, nine hundred seventy-three million, four hundred twenty-seven thousand, four hundred forty-three".