145620443 has 2 divisors, whose sum is σ = 145620444. Its totient is φ = 145620442.

The previous prime is 145620421. The next prime is 145620467. The reversal of 145620443 is 344026541.

It is a weak prime.

It is an emirp because it is prime and its reverse (344026541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145620443 - 2⁶ = 145620379 is a prime.

It is not a weakly prime, because it can be changed into another prime (145620043) 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, 72810221 + 72810222.

It is an arithmetic number, because the mean of its divisors is an integer number (72810222).

Almost surely, 2^145620443 is an apocalyptic number.

145620443 is a deficient number, since it is larger than the sum of its proper divisors (1).

145620443 is an equidigital number, since it uses as much as digits as its factorization.

145620443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 145620443 is about 12067.3295720304. The cubic root of 145620443 is about 526.1070432776.

Adding to 145620443 its reverse (344026541), we get a palindrome (489646984).

The spelling of 145620443 in words is "one hundred forty-five million, six hundred twenty thousand, four hundred forty-three".