2146319197 has 4 divisors (see below), whose sum is σ = 2341439136. Its totient is φ = 1951199260.

The previous prime is 2146319171. The next prime is 2146319233. The reversal of 2146319197 is 7919136412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2146319197 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 (2146319107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97559953 + ... + 97559974.

It is an arithmetic number, because the mean of its divisors is an integer number (585359784).

Almost surely, 2^2146319197 is an apocalyptic number.

It is an amenable number.

2146319197 is a deficient number, since it is larger than the sum of its proper divisors (195119939).

2146319197 is a wasteful number, since it uses less digits than its factorization.

2146319197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195119938.

The product of its digits is 81648, while the sum is 43.

The square root of 2146319197 is about 46328.3843555978. The cubic root of 2146319197 is about 1289.9259210711.

The spelling of 2146319197 in words is "two billion, one hundred forty-six million, three hundred nineteen thousand, one hundred ninety-seven".