2005127 has 4 divisors (see below), whose sum is σ = 2110680. Its totient is φ = 1899576.

The previous prime is 2005121. The next prime is 2005139. The reversal of 2005127 is 7215002.

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

It is a cyclic number.

It is not a de Polignac number, because 2005127 - 2¹⁶ = 1939591 is a prime.

It is a super-2 number, since 2×2005127² = 8041068572258, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52748 + ... + 52785.

It is an arithmetic number, because the mean of its divisors is an integer number (527670).

2^2005127 is an apocalyptic number.

2005127 is a deficient number, since it is larger than the sum of its proper divisors (105553).

2005127 is a wasteful number, since it uses less digits than its factorization.

2005127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105552.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 2005127 is about 1416.0250703995. The cubic root of 2005127 is about 126.0996733783.

The spelling of 2005127 in words is "two million, five thousand, one hundred twenty-seven".