2171474459 has 32 divisors (see below), whose sum is σ = 2840085504. Its totient is φ = 1609850880.

The previous prime is 2171474443. The next prime is 2171474467. The reversal of 2171474459 is 9544741712.

It is not a de Polignac number, because 2171474459 - 2⁴ = 2171474443 is a prime.

It is a Smith number, since the sum of its digits (44) 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 not an unprimeable number, because it can be changed into a prime (2171474419) 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 31 ways as a sum of consecutive naturals, for example, 338627 + ... + 344979.

It is an arithmetic number, because the mean of its divisors is an integer number (88752672).

Almost surely, 2^2171474459 is an apocalyptic number.

2171474459 is a deficient number, since it is larger than the sum of its proper divisors (668611045).

2171474459 is a wasteful number, since it uses less digits than its factorization.

2171474459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6587.

The product of its digits is 282240, while the sum is 44.

The square root of 2171474459 is about 46599.0821690728. The cubic root of 2171474459 is about 1294.9457516668.

The spelling of 2171474459 in words is "two billion, one hundred seventy-one million, four hundred seventy-four thousand, four hundred fifty-nine".