145605443 has 2 divisors, whose sum is σ = 145605444. Its totient is φ = 145605442.

The previous prime is 145605437. The next prime is 145605487. The reversal of 145605443 is 344506541.

It is a weak prime.

It is an emirp because it is prime and its reverse (344506541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145605443 - 2¹⁸ = 145343299 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145605413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72802721 + 72802722.

It is an arithmetic number, because the mean of its divisors is an integer number (72802722).

Almost surely, 2^145605443 is an apocalyptic number.

145605443 is a deficient number, since it is larger than the sum of its proper divisors (1).

145605443 is an equidigital number, since it uses as much as digits as its factorization.

145605443 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 32.

The square root of 145605443 is about 12066.7080432071. The cubic root of 145605443 is about 526.0889783309.

The spelling of 145605443 in words is "one hundred forty-five million, six hundred five thousand, four hundred forty-three".