2681138 has 8 divisors (see below), whose sum is σ = 4258332. Its totient is φ = 1261696.

The previous prime is 2681117. The next prime is 2681141. The reversal of 2681138 is 8311862.

It can be written as a sum of positive squares in 2 ways, for example, as 2679769 + 1369 = 1637^2 + 37^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2681138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39395 + ... + 39462.

2^2681138 is an apocalyptic number.

2681138 is a deficient number, since it is larger than the sum of its proper divisors (1577194).

2681138 is a wasteful number, since it uses less digits than its factorization.

2681138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78876.

The product of its digits is 2304, while the sum is 29.

The square root of 2681138 is about 1637.4180895544. The cubic root of 2681138 is about 138.9226490258.

The spelling of 2681138 in words is "two million, six hundred eighty-one thousand, one hundred thirty-eight".