145313320544305 has 8 divisors (see below), whose sum is σ = 174439417185000. Its totient is φ = 116208368080896.

The previous prime is 145313320544297. The next prime is 145313320544323. The reversal of 145313320544305 is 503445023313541.

It can be written as a sum of positive squares in 4 ways, for example, as 23208190630144 + 122105129914161 = 4817488^2 + 11050119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145313320544305 - 2³ = 145313320544297 is a prime.

It is a super-2 number, since 2×145313320544305² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5286029200 + ... + 5286056689.

It is an arithmetic number, because the mean of its divisors is an integer number (21804927148125).

Almost surely, 2^{145313320544305} is an apocalyptic number.

It is an amenable number.

145313320544305 is a deficient number, since it is larger than the sum of its proper divisors (29126096640695).

145313320544305 is a wasteful number, since it uses less digits than its factorization.

145313320544305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10572088643.

The product of its (nonzero) digits is 1296000, while the sum is 43.

Adding to 145313320544305 its reverse (503445023313541), we get a palindrome (648758343857846).

The spelling of 145313320544305 in words is "one hundred forty-five trillion, three hundred thirteen billion, three hundred twenty million, five hundred forty-four thousand, three hundred five".