2541321 has 16 divisors (see below), whose sum is σ = 3829120. Its totient is φ = 1665360.

The previous prime is 2541289. The next prime is 2541323. The reversal of 2541321 is 1231452.

It is not a de Polignac number, because 2541321 - 2⁵ = 2541289 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2541294 and 2541303.

It is not an unprimeable number, because it can be changed into a prime (2541323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 876 + ... + 2418.

It is an arithmetic number, because the mean of its divisors is an integer number (239320).

2^2541321 is an apocalyptic number.

It is an amenable number.

2541321 is a deficient number, since it is larger than the sum of its proper divisors (1287799).

2541321 is a wasteful number, since it uses less digits than its factorization.

2541321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613 (or 1607 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 2541321 is about 1594.1521257396. The cubic root of 2541321 is about 136.4645482139.

Adding to 2541321 its reverse (1231452), we get a palindrome (3772773).

The spelling of 2541321 in words is "two million, five hundred forty-one thousand, three hundred twenty-one".