2133637461 has 6 divisors (see below), whose sum is σ = 3081920790. Its totient is φ = 1422424968.

The previous prime is 2133637453. The next prime is 2133637489. The reversal of 2133637461 is 1647363312.

2133637461 is a `hidden beast` number, since 2 + 13 + 3 + 637 + 4 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1846334961 + 287302500 = 42969^2 + 16950^2 .

It is not a de Polignac number, because 2133637461 - 2³ = 2133637453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133637361) 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 in 5 ways as a sum of consecutive naturals, for example, 118535406 + ... + 118535423.

It is an arithmetic number, because the mean of its divisors is an integer number (513653465).

Almost surely, 2^2133637461 is an apocalyptic number.

It is an amenable number.

2133637461 is a deficient number, since it is larger than the sum of its proper divisors (948283329).

2133637461 is a wasteful number, since it uses less digits than its factorization.

2133637461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237070835 (or 237070832 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 2133637461 is about 46191.3136964083. The cubic root of 2133637461 is about 1287.3803499078.

The spelling of 2133637461 in words is "two billion, one hundred thirty-three million, six hundred thirty-seven thousand, four hundred sixty-one".