2087138 has 8 divisors (see below), whose sum is σ = 3136860. Its totient is φ = 1041520.

The previous prime is 2087123. The next prime is 2087147. The reversal of 2087138 is 8317802.

It can be written as a sum of positive squares in 2 ways, for example, as 1940449 + 146689 = 1393^2 + 383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2087138² = 8712290062088, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2087138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328 + ... + 2436.

2^2087138 is an apocalyptic number.

2087138 is a deficient number, since it is larger than the sum of its proper divisors (1049722).

2087138 is a wasteful number, since it uses less digits than its factorization.

2087138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 2087138 is about 1444.6930469826. The cubic root of 2087138 is about 127.7959395035.

The spelling of 2087138 in words is "two million, eighty-seven thousand, one hundred thirty-eight".