1721271082 has 8 divisors (see below), whose sum is σ = 2582261316. Its totient is φ = 860517312.

The previous prime is 1721271077. The next prime is 1721271109. The reversal of 1721271082 is 2801721271.

It can be written as a sum of positive squares in 2 ways, for example, as 1403326521 + 317944561 = 37461^2 + 17831^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 39633 + ... + 70804.

Almost surely, 2^1721271082 is an apocalyptic number.

1721271082 is a deficient number, since it is larger than the sum of its proper divisors (860990234).

1721271082 is a wasteful number, since it uses less digits than its factorization.

1721271082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118232.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 1721271082 is about 41488.2041308129. The cubic root of 1721271082 is about 1198.4403538908.

The spelling of 1721271082 in words is "one billion, seven hundred twenty-one million, two hundred seventy-one thousand, eighty-two".