2681534 has 4 divisors (see below), whose sum is σ = 4022304. Its totient is φ = 1340766.

The previous prime is 2681533. The next prime is 2681557. The reversal of 2681534 is 4351862.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2681497 and 2681506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681533) by changing a digit.

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 as a sum of consecutive naturals, namely, 670382 + ... + 670385.

It is an arithmetic number, because the mean of its divisors is an integer number (1005576).

2^2681534 is an apocalyptic number.

2681534 is a deficient number, since it is larger than the sum of its proper divisors (1340770).

2681534 is a wasteful number, since it uses less digits than its factorization.

2681534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340769.

The product of its digits is 5760, while the sum is 29.

The square root of 2681534 is about 1637.5390071690. The cubic root of 2681534 is about 138.9294882436.

The spelling of 2681534 in words is "two million, six hundred eighty-one thousand, five hundred thirty-four".