2135876461 has 2 divisors, whose sum is σ = 2135876462. Its totient is φ = 2135876460.

The previous prime is 2135876453. The next prime is 2135876527. The reversal of 2135876461 is 1646785312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1473792100 + 662084361 = 38390^2 + 25731^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135876461 - 2³ = 2135876453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135876401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067938230 + 1067938231.

It is an arithmetic number, because the mean of its divisors is an integer number (1067938231).

Almost surely, 2^2135876461 is an apocalyptic number.

It is an amenable number.

2135876461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135876461 is an equidigital number, since it uses as much as digits as its factorization.

2135876461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The square root of 2135876461 is about 46215.5434999958. The cubic root of 2135876461 is about 1287.8305102532.

The spelling of 2135876461 in words is "two billion, one hundred thirty-five million, eight hundred seventy-six thousand, four hundred sixty-one".