2143775541 has 8 divisors (see below), whose sum is σ = 2858621920. Its totient is φ = 1429056432.

The previous prime is 2143775537. The next prime is 2143775549. The reversal of 2143775541 is 1455773412.

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

It is not a de Polignac number, because 2143775541 - 2² = 2143775537 is a prime.

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 2143775541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143775549) 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, 19155 + ... + 68223.

It is an arithmetic number, because the mean of its divisors is an integer number (357327740).

Almost surely, 2^2143775541 is an apocalyptic number.

It is an amenable number.

2143775541 is a deficient number, since it is larger than the sum of its proper divisors (714846379).

2143775541 is a wasteful number, since it uses less digits than its factorization.

2143775541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63635.

The product of its digits is 117600, while the sum is 39.

The square root of 2143775541 is about 46300.9237596832. The cubic root of 2143775541 is about 1289.4161452575.

The spelling of 2143775541 in words is "two billion, one hundred forty-three million, seven hundred seventy-five thousand, five hundred forty-one".