145528243 has 4 divisors (see below), whose sum is σ = 166318000. Its totient is φ = 124738488.

The previous prime is 145528241. The next prime is 145528247. The reversal of 145528243 is 342825541.

145528243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342825541 = 43 ⋅7972687.

It is not a de Polignac number, because 145528243 - 2¹ = 145528241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145528199 and 145528208.

It is not an unprimeable number, because it can be changed into a prime (145528241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10394868 + ... + 10394881.

It is an arithmetic number, because the mean of its divisors is an integer number (41579500).

Almost surely, 2^145528243 is an apocalyptic number.

145528243 is a deficient number, since it is larger than the sum of its proper divisors (20789757).

145528243 is an equidigital number, since it uses as much as digits as its factorization.

145528243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20789756.

The product of its digits is 38400, while the sum is 34.

The square root of 145528243 is about 12063.5087350240. The cubic root of 145528243 is about 525.9959844422.

The spelling of 145528243 in words is "one hundred forty-five million, five hundred twenty-eight thousand, two hundred forty-three".