2135271682 has 8 divisors (see below), whose sum is σ = 3313352700. Its totient is φ = 1030820784.

The previous prime is 2135271647. The next prime is 2135271731. The reversal of 2135271682 is 2861725312.

It is a Cunningham number, because it is equal to 46209²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 2135271681 + 1 = 46209^2 + 1^2 .

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

It is a super-2 number, since 2×2135271682² = 9118770311902218248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18407457 + ... + 18407572.

Almost surely, 2^2135271682 is an apocalyptic number.

2135271682 is a deficient number, since it is larger than the sum of its proper divisors (1178081018).

2135271682 is a wasteful number, since it uses less digits than its factorization.

2135271682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36815060.

The product of its digits is 40320, while the sum is 37.

The square root of 2135271682 is about 46209.0000108204. Note that the first 4 decimals coincide. The cubic root of 2135271682 is about 1287.7089479211.

Adding to 2135271682 its reverse (2861725312), we get a palindrome (4996996994).

The spelling of 2135271682 in words is "two billion, one hundred thirty-five million, two hundred seventy-one thousand, six hundred eighty-two".