2195688371 has 4 divisors (see below), whose sum is σ = 2195823072. Its totient is φ = 2195553672.

The previous prime is 2195688361. The next prime is 2195688377. The reversal of 2195688371 is 1738865912.

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 2195688371 - 2¹⁴ = 2195671987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2195688377) 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, 38891 + ... + 76836.

It is an arithmetic number, because the mean of its divisors is an integer number (548955768).

Almost surely, 2^2195688371 is an apocalyptic number.

2195688371 is a deficient number, since it is larger than the sum of its proper divisors (134701).

2195688371 is a wasteful number, since it uses less digits than its factorization.

2195688371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134700.

The product of its digits is 725760, while the sum is 50.

The square root of 2195688371 is about 46858.1729370662. The cubic root of 2195688371 is about 1299.7412445553.

The spelling of 2195688371 in words is "two billion, one hundred ninety-five million, six hundred eighty-eight thousand, three hundred seventy-one".