2143841954 has 16 divisors (see below), whose sum is σ = 3261535200. Its totient is φ = 1056679200.

The previous prime is 2143841939. The next prime is 2143841957. The reversal of 2143841954 is 4591483412.

It is a super-3 number, since 3×2143841954³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2143841957) 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, 479429 + ... + 483879.

It is an arithmetic number, because the mean of its divisors is an integer number (203845950).

Almost surely, 2^2143841954 is an apocalyptic number.

2143841954 is a deficient number, since it is larger than the sum of its proper divisors (1117693246).

2143841954 is a wasteful number, since it uses less digits than its factorization.

2143841954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7825.

The product of its digits is 138240, while the sum is 41.

The square root of 2143841954 is about 46301.6409428435. The cubic root of 2143841954 is about 1289.4294602569.

The spelling of 2143841954 in words is "two billion, one hundred forty-three million, eight hundred forty-one thousand, nine hundred fifty-four".