2195143 has 4 divisors (see below), whose sum is σ = 2290608. Its totient is φ = 2099680.

The previous prime is 2195119. The next prime is 2195147. The reversal of 2195143 is 3415912.

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 2195143 - 2⁹ = 2194631 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 (2195147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47698 + ... + 47743.

It is an arithmetic number, because the mean of its divisors is an integer number (572652).

2^2195143 is an apocalyptic number.

2195143 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2195143 is a deficient number, since it is larger than the sum of its proper divisors (95465).

2195143 is an equidigital number, since it uses as much as digits as its factorization.

2195143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95464.

The product of its digits is 1080, while the sum is 25.

The square root of 2195143 is about 1481.6014983794. The cubic root of 2195143 is about 129.9633624566.

It can be divided in two parts, 2 and 195143, that multiplied together give a triangular number (390286 = T₈₈₃).

The spelling of 2195143 in words is "two million, one hundred ninety-five thousand, one hundred forty-three".