202220315145 has 48 divisors (see below), whose sum is σ = 368084950272. Its totient is φ = 102504504960.

The previous prime is 202220315123. The next prime is 202220315173. The reversal of 202220315145 is 541513022202.

202220315145 is a `hidden beast` number, since 202 + 2 + 2 + 0 + 315 + 145 = 666.

It is not a de Polignac number, because 202220315145 - 2⁸ = 202220314889 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 459741 + ... + 784730.

It is an arithmetic number, because the mean of its divisors is an integer number (7668436464).

Almost surely, 2^202220315145 is an apocalyptic number.

It is an amenable number.

202220315145 is a deficient number, since it is larger than the sum of its proper divisors (165864635127).

202220315145 is a wasteful number, since it uses less digits than its factorization.

202220315145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244662 (or 1244659 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 202220315145 its reverse (541513022202), we get a palindrome (743733337347).

The spelling of 202220315145 in words is "two hundred two billion, two hundred twenty million, three hundred fifteen thousand, one hundred forty-five".