2135726653 has 2 divisors, whose sum is σ = 2135726654. Its totient is φ = 2135726652.

The previous prime is 2135726651. The next prime is 2135726683. The reversal of 2135726653 is 3566275312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1577916729 + 557809924 = 39723^2 + 23618^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135726653 - 2¹ = 2135726651 is a prime.

It is a super-2 number, since 2×2135726653² = 9122656672669164818, which contains 22 as substring.

Together with 2135726651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135726651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067863326 + 1067863327.

It is an arithmetic number, because the mean of its divisors is an integer number (1067863327).

Almost surely, 2^2135726653 is an apocalyptic number.

It is an amenable number.

2135726653 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135726653 is an equidigital number, since it uses as much as digits as its factorization.

2135726653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 40.

The square root of 2135726653 is about 46213.9227181593. The cubic root of 2135726653 is about 1287.8004005493.

The spelling of 2135726653 in words is "two billion, one hundred thirty-five million, seven hundred twenty-six thousand, six hundred fifty-three".