145009323 has 12 divisors (see below), whose sum is σ = 209562288. Its totient is φ = 96624720.

The previous prime is 145009321. The next prime is 145009331. The reversal of 145009323 is 323900541.

It is not a de Polignac number, because 145009323 - 2¹ = 145009321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145009321) 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 11 ways as a sum of consecutive naturals, for example, 34053 + ... + 38073.

It is an arithmetic number, because the mean of its divisors is an integer number (17463524).

Almost surely, 2^145009323 is an apocalyptic number.

145009323 is a deficient number, since it is larger than the sum of its proper divisors (64552965).

145009323 is a wasteful number, since it uses less digits than its factorization.

145009323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8034 (or 8031 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 145009323 is about 12041.9816890743. The cubic root of 145009323 is about 525.3700465941.

Adding to 145009323 its reverse (323900541), we get a palindrome (468909864).

The spelling of 145009323 in words is "one hundred forty-five million, nine thousand, three hundred twenty-three".