2119597243 has 4 divisors (see below), whose sum is σ = 2155522680. Its totient is φ = 2083671808.

The previous prime is 2119597187. The next prime is 2119597279. The reversal of 2119597243 is 3427959112.

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

It is a cyclic number.

It is not a de Polignac number, because 2119597243 - 2²⁵ = 2086042811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2119597243.

It is not an unprimeable number, because it can be changed into a prime (2119592243) 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, 17962630 + ... + 17962747.

It is an arithmetic number, because the mean of its divisors is an integer number (538880670).

Almost surely, 2^2119597243 is an apocalyptic number.

2119597243 is a deficient number, since it is larger than the sum of its proper divisors (35925437).

2119597243 is an equidigital number, since it uses as much as digits as its factorization.

2119597243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35925436.

The product of its digits is 136080, while the sum is 43.

The square root of 2119597243 is about 46039.0838636044. The cubic root of 2119597243 is about 1284.5503012406.

The spelling of 2119597243 in words is "two billion, one hundred nineteen million, five hundred ninety-seven thousand, two hundred forty-three".