2681015 has 4 divisors (see below), whose sum is σ = 3217224. Its totient is φ = 2144808.

The previous prime is 2681009. The next prime is 2681017. The reversal of 2681015 is 5101862.

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 2681015 - 2⁴ = 2680999 is a prime.

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 (2681017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268097 + ... + 268106.

It is an arithmetic number, because the mean of its divisors is an integer number (804306).

2^2681015 is an apocalyptic number.

2681015 is a deficient number, since it is larger than the sum of its proper divisors (536209).

2681015 is an equidigital number, since it uses as much as digits as its factorization.

2681015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536208.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 2681015 is about 1637.3805299930. The cubic root of 2681015 is about 138.9205245862.

Adding to 2681015 its reverse (5101862), we get a palindrome (7782877).

The spelling of 2681015 in words is "two million, six hundred eighty-one thousand, fifteen".