145040243 has 16 divisors (see below), whose sum is σ = 162570240. Its totient is φ = 128592000.

The previous prime is 145040237. The next prime is 145040267. The reversal of 145040243 is 342040541.

It is not a de Polignac number, because 145040243 - 2¹⁶ = 144974707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145040293) 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 in 15 ways as a sum of consecutive naturals, for example, 60518 + ... + 62868.

It is an arithmetic number, because the mean of its divisors is an integer number (10160640).

Almost surely, 2^145040243 is an apocalyptic number.

145040243 is a deficient number, since it is larger than the sum of its proper divisors (17529997).

145040243 is a wasteful number, since it uses less digits than its factorization.

145040243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 145040243 is about 12043.2654624898. The cubic root of 145040243 is about 525.4073850839.

Adding to 145040243 its reverse (342040541), we get a palindrome (487080784).

The spelling of 145040243 in words is "one hundred forty-five million, forty thousand, two hundred forty-three".