4243146197 has 4 divisors (see below), whose sum is σ = 4244864460. Its totient is φ = 4241427936.

The previous prime is 4243146181. The next prime is 4243146251. The reversal of 4243146197 is 7916413424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3095698321 + 1147447876 = 55639^2 + 33874^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243146197 - 2⁴ = 4243146181 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 (4243146137) 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, 855422 + ... + 860367.

It is an arithmetic number, because the mean of its divisors is an integer number (1061216115).

Almost surely, 2^4243146197 is an apocalyptic number.

It is an amenable number.

4243146197 is a deficient number, since it is larger than the sum of its proper divisors (1718263).

4243146197 is a wasteful number, since it uses less digits than its factorization.

4243146197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718262.

The product of its digits is 145152, while the sum is 41.

The square root of 4243146197 is about 65139.4365726324. The cubic root of 4243146197 is about 1618.9347003471.

The spelling of 4243146197 in words is "four billion, two hundred forty-three million, one hundred forty-six thousand, one hundred ninety-seven".