2546321 has 2 divisors, whose sum is σ = 2546322. Its totient is φ = 2546320.

The previous prime is 2546317. The next prime is 2546329. The reversal of 2546321 is 1236452.

2546321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2356225 + 190096 = 1535^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 2546321 - 2² = 2546317 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 5⁹ + 4⁸ + 6⁴ + 3³ + 2¹⁹ + 1 .

It is not a weakly prime, because it can be changed into another prime (2546329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1273160 + 1273161.

It is an arithmetic number, because the mean of its divisors is an integer number (1273161).

2^2546321 is an apocalyptic number.

It is an amenable number.

2546321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2546321 is an equidigital number, since it uses as much as digits as its factorization.

2546321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 2546321 is about 1595.7195868949. The cubic root of 2546321 is about 136.5539867046.

The spelling of 2546321 in words is "two million, five hundred forty-six thousand, three hundred twenty-one".