145220331214325 has 6 divisors (see below), whose sum is σ = 180073210705794. Its totient is φ = 116176264971440.

The previous prime is 145220331214289. The next prime is 145220331214391. The reversal of 145220331214325 is 523412133022541.

It can be written as a sum of positive squares in 3 ways, for example, as 49228423592209 + 95991907622116 = 7016297^2 + 9797546^2 .

It is not a de Polignac number, because 145220331214325 - 2⁶ = 145220331214261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2904406624262 + ... + 2904406624311.

It is an arithmetic number, because the mean of its divisors is an integer number (30012201784299).

Almost surely, 2^{145220331214325} is an apocalyptic number.

It is an amenable number.

145220331214325 is a deficient number, since it is larger than the sum of its proper divisors (34852879491469).

145220331214325 is an equidigital number, since it uses as much as digits as its factorization.

145220331214325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808813248583 (or 5808813248578 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 145220331214325 its reverse (523412133022541), we get a palindrome (668632464236866).

The spelling of 145220331214325 in words is "one hundred forty-five trillion, two hundred twenty billion, three hundred thirty-one million, two hundred fourteen thousand, three hundred twenty-five".