2682121 has 8 divisors (see below), whose sum is σ = 2906120. Its totient is φ = 2460672.

The previous prime is 2682103. The next prime is 2682131. The reversal of 2682121 is 1212862.

It can be written as a sum of positive squares in 4 ways, for example, as 5625 + 2676496 = 75^2 + 1636^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2682121 - 2⁷ = 2681993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2682092 and 2682101.

It is not an unprimeable number, because it can be changed into a prime (2682101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1975 + ... + 3043.

It is an arithmetic number, because the mean of its divisors is an integer number (363265).

2^2682121 is an apocalyptic number.

It is an amenable number.

2682121 is a deficient number, since it is larger than the sum of its proper divisors (223999).

2682121 is a wasteful number, since it uses less digits than its factorization.

2682121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275.

The product of its digits is 384, while the sum is 22.

The square root of 2682121 is about 1637.7182297331. The cubic root of 2682121 is about 138.9396249365.

Adding to 2682121 its reverse (1212862), we get a palindrome (3894983).

The spelling of 2682121 in words is "two million, six hundred eighty-two thousand, one hundred twenty-one".