2143661041 has 8 divisors (see below), whose sum is σ = 2155325984. Its totient is φ = 2132010720.

The previous prime is 2143661033. The next prime is 2143661077. The reversal of 2143661041 is 1401663412.

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

It is a cyclic number.

It is not a de Polignac number, because 2143661041 - 2³ = 2143661033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143661021) 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, 416701 + ... + 421813.

It is an arithmetic number, because the mean of its divisors is an integer number (269415748).

Almost surely, 2^2143661041 is an apocalyptic number.

It is an amenable number.

2143661041 is a deficient number, since it is larger than the sum of its proper divisors (11664943).

2143661041 is a wasteful number, since it uses less digits than its factorization.

2143661041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7311.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2143661041 is about 46299.6872667624. The cubic root of 2143661041 is about 1289.3931887532.

The spelling of 2143661041 in words is "two billion, one hundred forty-three million, six hundred sixty-one thousand, forty-one".