145023323 has 4 divisors (see below), whose sum is σ = 145759680. Its totient is φ = 144286968.

The previous prime is 145023293. The next prime is 145023337. The reversal of 145023323 is 323320541.

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 145023323 - 2⁶ = 145023259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145029323) 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 3 ways as a sum of consecutive naturals, for example, 367883 + ... + 368276.

It is an arithmetic number, because the mean of its divisors is an integer number (36439920).

Almost surely, 2^145023323 is an apocalyptic number.

145023323 is a deficient number, since it is larger than the sum of its proper divisors (736357).

145023323 is an equidigital number, since it uses as much as digits as its factorization.

145023323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736356.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 145023323 is about 12042.5629747160. The cubic root of 145023323 is about 525.3869534242.

Adding to 145023323 its reverse (323320541), we get a palindrome (468343864).

The spelling of 145023323 in words is "one hundred forty-five million, twenty-three thousand, three hundred twenty-three".