145130243 has 4 divisors (see below), whose sum is σ = 149052720. Its totient is φ = 141207768.

The previous prime is 145130179. The next prime is 145130263. The reversal of 145130243 is 342031541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145130243 - 2⁶ = 145130179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145130263) 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, 1961183 + ... + 1961256.

It is an arithmetic number, because the mean of its divisors is an integer number (37263180).

Almost surely, 2^145130243 is an apocalyptic number.

145130243 is a deficient number, since it is larger than the sum of its proper divisors (3922477).

145130243 is an equidigital number, since it uses as much as digits as its factorization.

145130243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922476.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 145130243 is about 12047.0014111396. The cubic root of 145130243 is about 525.5160374283.

Adding to 145130243 its reverse (342031541), we get a palindrome (487161784).

The spelling of 145130243 in words is "one hundred forty-five million, one hundred thirty thousand, two hundred forty-three".