145441223 has 2 divisors, whose sum is σ = 145441224. Its totient is φ = 145441222.

The previous prime is 145441201. The next prime is 145441229. The reversal of 145441223 is 322144541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145441223 - 2⁶ = 145441159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145441192 and 145441201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145441229) 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, 72720611 + 72720612.

It is an arithmetic number, because the mean of its divisors is an integer number (72720612).

Almost surely, 2^145441223 is an apocalyptic number.

145441223 is a deficient number, since it is larger than the sum of its proper divisors (1).

145441223 is an equidigital number, since it uses as much as digits as its factorization.

145441223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 26.

The square root of 145441223 is about 12059.9014506753. The cubic root of 145441223 is about 525.8911221008.

Adding to 145441223 its reverse (322144541), we get a palindrome (467585764).

The spelling of 145441223 in words is "one hundred forty-five million, four hundred forty-one thousand, two hundred twenty-three".