2020102545 has 8 divisors (see below), whose sum is σ = 3232164096. Its totient is φ = 1077388016.

The previous prime is 2020102543. The next prime is 2020102573. The reversal of 2020102545 is 5452010202.

It is a happy number.

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 2020102545 - 2¹ = 2020102543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2020102543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67336737 + ... + 67336766.

It is an arithmetic number, because the mean of its divisors is an integer number (404020512).

Almost surely, 2^2020102545 is an apocalyptic number.

It is an amenable number.

2020102545 is a deficient number, since it is larger than the sum of its proper divisors (1212061551).

2020102545 is a wasteful number, since it uses less digits than its factorization.

2020102545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134673511.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 2020102545 is about 44945.5508921628. The cubic root of 2020102545 is about 1264.1282552337.

Adding to 2020102545 its reverse (5452010202), we get a palindrome (7472112747).

The spelling of 2020102545 in words is "two billion, twenty million, one hundred two thousand, five hundred forty-five".