2129143473 has 12 divisors (see below), whose sum is σ = 3112483920. Its totient is φ = 1402326936.

The previous prime is 2129143469. The next prime is 2129143483. The reversal of 2129143473 is 3743419212.

It is a happy number.

2129143473 is a `hidden beast` number, since 21 + 29 + 143 + 473 = 666.

It is not a de Polignac number, because 2129143473 - 2² = 2129143469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2129143403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1424383 + ... + 1425876.

It is an arithmetic number, because the mean of its divisors is an integer number (259373660).

Almost surely, 2^2129143473 is an apocalyptic number.

It is an amenable number.

2129143473 is a deficient number, since it is larger than the sum of its proper divisors (983340447).

2129143473 is a wasteful number, since it uses less digits than its factorization.

2129143473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850348 (or 2850345 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2129143473 is about 46142.6426746453. The cubic root of 2129143473 is about 1286.4758634607.

The spelling of 2129143473 in words is "two billion, one hundred twenty-nine million, one hundred forty-three thousand, four hundred seventy-three".