2562121 has 8 divisors (see below), whose sum is σ = 2806920. Its totient is φ = 2327808.

The previous prime is 2562097. The next prime is 2562143. The reversal of 2562121 is 1212652.

It can be written as a sum of positive squares in 4 ways, for example, as 657721 + 1904400 = 811^2 + 1380^2 .

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 2562121 - 2¹⁷ = 2431049 is a prime.

It is a Duffinian number.

2562121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2562191) 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, 2106 + ... + 3091.

It is an arithmetic number, because the mean of its divisors is an integer number (350865).

2^2562121 is an apocalyptic number.

It is an amenable number.

2562121 is a deficient number, since it is larger than the sum of its proper divisors (244799).

2562121 is a wasteful number, since it uses less digits than its factorization.

2562121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243.

The product of its digits is 240, while the sum is 19.

The square root of 2562121 is about 1600.6626752692. The cubic root of 2562121 is about 136.8358450863.

Adding to 2562121 its reverse (1212652), we get a palindrome (3774773).

The spelling of 2562121 in words is "two million, five hundred sixty-two thousand, one hundred twenty-one".