1141819843 has 4 divisors (see below), whose sum is σ = 1191464208. Its totient is φ = 1092175480.

The previous prime is 1141819837. The next prime is 1141819853. The reversal of 1141819843 is 3489181411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141819843 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1141819796 and 1141819805.

It is not an unprimeable number, because it can be changed into a prime (1141819853) 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, 24822148 + ... + 24822193.

It is an arithmetic number, because the mean of its divisors is an integer number (297866052).

Almost surely, 2^1141819843 is an apocalyptic number.

1141819843 is a deficient number, since it is larger than the sum of its proper divisors (49644365).

1141819843 is an equidigital number, since it uses as much as digits as its factorization.

1141819843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49644364.

The product of its digits is 27648, while the sum is 40.

The square root of 1141819843 is about 33790.8248345612. The cubic root of 1141819843 is about 1045.1995049601.

The spelling of 1141819843 in words is "one billion, one hundred forty-one million, eight hundred nineteen thousand, eight hundred forty-three".