2813057197 has 4 divisors (see below), whose sum is σ = 2813871580. Its totient is φ = 2812242816.

The previous prime is 2813057183. The next prime is 2813057209. The reversal of 2813057197 is 7917503182.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7917503182 = 2 ⋅3958751591.

It can be written as a sum of positive squares in 2 ways, for example, as 710009316 + 2103047881 = 26646^2 + 45859^2 .

It is a cyclic number.

It is not a de Polignac number, because 2813057197 - 2⁷ = 2813057069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813055197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401988 + ... + 408925.

It is an arithmetic number, because the mean of its divisors is an integer number (703467895).

Almost surely, 2^2813057197 is an apocalyptic number.

It is an amenable number.

2813057197 is a deficient number, since it is larger than the sum of its proper divisors (814383).

2813057197 is an equidigital number, since it uses as much as digits as its factorization.

2813057197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814382.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 2813057197 is about 53038.2616325234. The cubic root of 2813057197 is about 1411.6472536023.

The spelling of 2813057197 in words is "two billion, eight hundred thirteen million, fifty-seven thousand, one hundred ninety-seven".