2195254943 has 4 divisors (see below), whose sum is σ = 2508862800. Its totient is φ = 1881647088.

The previous prime is 2195254937. The next prime is 2195254967. The reversal of 2195254943 is 3494525912.

It is a happy number.

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 2195254943 - 2¹⁴ = 2195238559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2195254894 and 2195254903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195254903) 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, 156803918 + ... + 156803931.

It is an arithmetic number, because the mean of its divisors is an integer number (627215700).

Almost surely, 2^2195254943 is an apocalyptic number.

2195254943 is a deficient number, since it is larger than the sum of its proper divisors (313607857).

2195254943 is an equidigital number, since it uses as much as digits as its factorization.

2195254943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313607856.

The product of its digits is 388800, while the sum is 44.

The square root of 2195254943 is about 46853.5478165741. The cubic root of 2195254943 is about 1299.6557161279.

The spelling of 2195254943 in words is "two billion, one hundred ninety-five million, two hundred fifty-four thousand, nine hundred forty-three".