145022223 has 12 divisors (see below), whose sum is σ = 205407560. Its totient is φ = 90993792.

The previous prime is 145022197. The next prime is 145022233. The reversal of 145022223 is 322220541.

145022223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145022223 - 2⁶ = 145022159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145022223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145022233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82768 + ... + 84501.

Almost surely, 2^145022223 is an apocalyptic number.

145022223 is a deficient number, since it is larger than the sum of its proper divisors (60385337).

145022223 is a wasteful number, since it uses less digits than its factorization.

145022223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167306 (or 167289 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 145022223 is about 12042.5173032884. The cubic root of 145022223 is about 525.3856250698.

Adding to 145022223 its reverse (322220541), we get a palindrome (467242764).

The spelling of 145022223 in words is "one hundred forty-five million, twenty-two thousand, two hundred twenty-three".