2135814057 has 36 divisors (see below), whose sum is σ = 3537182844. Its totient is φ = 1237017600.

The previous prime is 2135814049. The next prime is 2135814089. The reversal of 2135814057 is 7504185312.

2135814057 is a `hidden beast` number, since 21 + 3 + 581 + 4 + 0 + 57 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 263607696 + 1872206361 = 16236^2 + 43269^2 .

It is not a de Polignac number, because 2135814057 - 2³ = 2135814049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2135814047) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15444 + ... + 67157.

It is an arithmetic number, because the mean of its divisors is an integer number (98255079).

Almost surely, 2^2135814057 is an apocalyptic number.

It is an amenable number.

2135814057 is a deficient number, since it is larger than the sum of its proper divisors (1401368787).

2135814057 is a wasteful number, since it uses less digits than its factorization.

2135814057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82650 (or 82634 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 2135814057 is about 46214.8683542429. The cubic root of 2135814057 is about 1287.8179679302.

Adding to 2135814057 its reverse (7504185312), we get a palindrome (9639999369).

The spelling of 2135814057 in words is "two billion, one hundred thirty-five million, eight hundred fourteen thousand, fifty-seven".