2020312445 has 4 divisors (see below), whose sum is σ = 2424374940. Its totient is φ = 1616249952.

The previous prime is 2020312429. The next prime is 2020312447. The reversal of 2020312445 is 5442130202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 799928089 + 1220384356 = 28283^2 + 34934^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020312445 - 2⁴ = 2020312429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020312445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020312447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202031240 + ... + 202031249.

It is an arithmetic number, because the mean of its divisors is an integer number (606093735).

Almost surely, 2^2020312445 is an apocalyptic number.

It is an amenable number.

2020312445 is a deficient number, since it is larger than the sum of its proper divisors (404062495).

2020312445 is an equidigital number, since it uses as much as digits as its factorization.

2020312445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404062494.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2020312445 is about 44947.8858790934. The cubic root of 2020312445 is about 1264.1720370592.

Adding to 2020312445 its reverse (5442130202), we get a palindrome (7462442647).

The spelling of 2020312445 in words is "two billion, twenty million, three hundred twelve thousand, four hundred forty-five".