145231323 has 16 divisors (see below), whose sum is σ = 206178336. Its totient is φ = 90616320.

The previous prime is 145231321. The next prime is 145231349. The reversal of 145231323 is 323132541.

It is not a de Polignac number, because 145231323 - 2¹ = 145231321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145231293 and 145231302.

It is not an unprimeable number, because it can be changed into a prime (145231321) 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, 1365 + ... + 17097.

It is an arithmetic number, because the mean of its divisors is an integer number (12886146).

Almost surely, 2^145231323 is an apocalyptic number.

145231323 is a deficient number, since it is larger than the sum of its proper divisors (60947013).

145231323 is a wasteful number, since it uses less digits than its factorization.

145231323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15934.

The product of its digits is 2160, while the sum is 24.

The square root of 145231323 is about 12051.1959157587. The cubic root of 145231323 is about 525.6380125421.

Adding to 145231323 its reverse (323132541), we get a palindrome (468363864).

The spelling of 145231323 in words is "one hundred forty-five million, two hundred thirty-one thousand, three hundred twenty-three".