2057735138 has 4 divisors (see below), whose sum is σ = 3086602710. Its totient is φ = 1028867568.

The previous prime is 2057735047. The next prime is 2057735149. The reversal of 2057735138 is 8315377502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1648603609 + 409131529 = 40603^2 + 20227^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2057735095 and 2057735104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514433783 + ... + 514433786.

Almost surely, 2^2057735138 is an apocalyptic number.

2057735138 is a deficient number, since it is larger than the sum of its proper divisors (1028867572).

2057735138 is a wasteful number, since it uses less digits than its factorization.

2057735138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028867571.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 2057735138 is about 45362.2655739327. The cubic root of 2057735138 is about 1271.9298450457.

The spelling of 2057735138 in words is "two billion, fifty-seven million, seven hundred thirty-five thousand, one hundred thirty-eight".