2642121 has 12 divisors (see below), whose sum is σ = 4017520. Its totient is φ = 1668600.

The previous prime is 2642117. The next prime is 2642137. The reversal of 2642121 is 1212462.

2642121 is a `hidden beast` number, since 2 + 642 + 1 + 21 = 666.

It is not a de Polignac number, because 2642121 - 2² = 2642117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2642094 and 2642103.

It is not an unprimeable number, because it can be changed into a prime (2642111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7555 + ... + 7896.

2^2642121 is an apocalyptic number.

It is an amenable number.

2642121 is a deficient number, since it is larger than the sum of its proper divisors (1375399).

2642121 is a wasteful number, since it uses less digits than its factorization.

2642121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15476 (or 15473 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 2642121 is about 1625.4602425159. The cubic root of 2642121 is about 138.2454673382.

Adding to 2642121 its reverse (1212462), we get a palindrome (3854583).

The spelling of 2642121 in words is "two million, six hundred forty-two thousand, one hundred twenty-one".