318855145145 has 8 divisors (see below), whose sum is σ = 395820180360. Its totient is φ = 246288112000.

The previous prime is 318855145121. The next prime is 318855145177. The reversal of 318855145145 is 541541558813.

It can be written as a sum of positive squares in 4 ways, for example, as 15621000256 + 303234144889 = 124984^2 + 550667^2 .

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

It is not a de Polignac number, because 318855145145 - 2²² = 318850950841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318855145093 and 318855145102.

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 7 ways as a sum of consecutive naturals, for example, 1099500356 + ... + 1099500645.

It is an arithmetic number, because the mean of its divisors is an integer number (49477522545).

Almost surely, 2^318855145145 is an apocalyptic number.

It is an amenable number.

318855145145 is a deficient number, since it is larger than the sum of its proper divisors (76965035215).

318855145145 is a wasteful number, since it uses less digits than its factorization.

318855145145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199001035.

The product of its digits is 1920000, while the sum is 50.

The spelling of 318855145145 in words is "three hundred eighteen billion, eight hundred fifty-five million, one hundred forty-five thousand, one hundred forty-five".