145205345323 has 4 divisors (see below), whose sum is σ = 145206137160. Its totient is φ = 145204553488.

The previous prime is 145205345321. The next prime is 145205345333. The reversal of 145205345323 is 323543502541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 145205345323 - 2¹ = 145205345321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145205345321) 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, 36783 + ... + 540151.

It is an arithmetic number, because the mean of its divisors is an integer number (36301534290).

Almost surely, 2^145205345323 is an apocalyptic number.

145205345323 is a deficient number, since it is larger than the sum of its proper divisors (791837).

145205345323 is an equidigital number, since it uses as much as digits as its factorization.

145205345323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791836.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 145205345323 its reverse (323543502541), we get a palindrome (468748847864).

The spelling of 145205345323 in words is "one hundred forty-five billion, two hundred five million, three hundred forty-five thousand, three hundred twenty-three".