2191141443 has 8 divisors (see below), whose sum is σ = 3000482128. Its totient is φ = 1421280864.

The previous prime is 2191141409. The next prime is 2191141451. The reversal of 2191141443 is 3441411912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2191141443 - 2¹⁴ = 2191125059 is a prime.

It is a super-2 number, since 2×2191141443² = 9602201646464244498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2191141443.

It is not an unprimeable number, because it can be changed into a prime (2191141493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9869896 + ... + 9870117.

It is an arithmetic number, because the mean of its divisors is an integer number (375060266).

Almost surely, 2^2191141443 is an apocalyptic number.

2191141443 is a deficient number, since it is larger than the sum of its proper divisors (809340685).

2191141443 is a wasteful number, since it uses less digits than its factorization.

2191141443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19740053.

The product of its digits is 3456, while the sum is 30.

The square root of 2191141443 is about 46809.6298105422. The cubic root of 2191141443 is about 1298.8434374286.

The spelling of 2191141443 in words is "two billion, one hundred ninety-one million, one hundred forty-one thousand, four hundred forty-three".