2020202145 has 24 divisors (see below), whose sum is σ = 3771045096. Its totient is φ = 994560768.

The previous prime is 2020202131. The next prime is 2020202153. The reversal of 2020202145 is 5412020202.

It can be written as a sum of positive squares in 4 ways, for example, as 43243776 + 1976958369 = 6576^2 + 44463^2 .

It is not a de Polignac number, because 2020202145 - 2¹¹ = 2020200097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1726084 + ... + 1727253.

It is an arithmetic number, because the mean of its divisors is an integer number (157126879).

Almost surely, 2^2020202145 is an apocalyptic number.

It is an amenable number.

2020202145 is a deficient number, since it is larger than the sum of its proper divisors (1750842951).

2020202145 is a wasteful number, since it uses less digits than its factorization.

2020202145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3453361 (or 3453358 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2020202145 is about 44946.6588858393. The cubic root of 2020202145 is about 1264.1490305990.

Adding to 2020202145 its reverse (5412020202), we get a palindrome (7432222347).

The spelling of 2020202145 in words is "two billion, twenty million, two hundred two thousand, one hundred forty-five".