2193741191 has 4 divisors (see below), whose sum is σ = 2244758472. Its totient is φ = 2142723912.

The previous prime is 2193741169. The next prime is 2193741223. The reversal of 2193741191 is 1911473912.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2193741191 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 (2193741101) 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, 25508576 + ... + 25508661.

It is an arithmetic number, because the mean of its divisors is an integer number (561189618).

Almost surely, 2^2193741191 is an apocalyptic number.

2193741191 is a deficient number, since it is larger than the sum of its proper divisors (51017281).

2193741191 is an equidigital number, since it uses as much as digits as its factorization.

2193741191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51017280.

The product of its digits is 13608, while the sum is 38.

The square root of 2193741191 is about 46837.3909499665. The cubic root of 2193741191 is about 1299.3569188181.

The spelling of 2193741191 in words is "two billion, one hundred ninety-three million, seven hundred forty-one thousand, one hundred ninety-one".