2143196297 has 4 divisors (see below), whose sum is σ = 2338032336. Its totient is φ = 1948360260.

The previous prime is 2143196249. The next prime is 2143196317. The reversal of 2143196297 is 7926913412.

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 not a de Polignac number, because 2143196297 - 2¹⁸ = 2142934153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143196227) 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, 97418003 + ... + 97418024.

It is an arithmetic number, because the mean of its divisors is an integer number (584508084).

Almost surely, 2^2143196297 is an apocalyptic number.

It is an amenable number.

2143196297 is a deficient number, since it is larger than the sum of its proper divisors (194836039).

2143196297 is a wasteful number, since it uses less digits than its factorization.

2143196297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194836038.

The product of its digits is 163296, while the sum is 44.

The square root of 2143196297 is about 46294.6681271181. The cubic root of 2143196297 is about 1289.3000022144.

The spelling of 2143196297 in words is "two billion, one hundred forty-three million, one hundred ninety-six thousand, two hundred ninety-seven".