2171343508 has 6 divisors (see below), whose sum is σ = 3799851146. Its totient is φ = 1085671752.

The previous prime is 2171343491. The next prime is 2171343533. The reversal of 2171343508 is 8053431712.

It can be written as a sum of positive squares in only one way, i.e., 2013137424 + 158206084 = 44868^2 + 12578^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271417935 + ... + 271417942.

Almost surely, 2^2171343508 is an apocalyptic number.

It is an amenable number.

2171343508 is a deficient number, since it is larger than the sum of its proper divisors (1628507638).

2171343508 is a wasteful number, since it uses less digits than its factorization.

2171343508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542835881 (or 542835879 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2171343508 is about 46597.6770665663. The cubic root of 2171343508 is about 1294.9197205294.

The spelling of 2171343508 in words is "two billion, one hundred seventy-one million, three hundred forty-three thousand, five hundred eight".