2020197915 has 20 divisors (see below), whose sum is σ = 3621392544. Its totient is φ = 1077438672.

The previous prime is 2020197911. The next prime is 2020197923. The reversal of 2020197915 is 5197910202.

It is not a de Polignac number, because 2020197915 - 2² = 2020197911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020197915.

It is not an unprimeable number, because it can be changed into a prime (2020197911) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2493667 + ... + 2494476.

Almost surely, 2^2020197915 is an apocalyptic number.

2020197915 is a deficient number, since it is larger than the sum of its proper divisors (1601194629).

2020197915 is an equidigital number, since it uses as much as digits as its factorization.

2020197915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988160 (or 4988151 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 2020197915 is about 44946.6118300368. The cubic root of 2020197915 is about 1264.1481482857.

The spelling of 2020197915 in words is "two billion, twenty million, one hundred ninety-seven thousand, nine hundred fifteen".