2581069 has 2 divisors, whose sum is σ = 2581070. Its totient is φ = 2581068.

The previous prime is 2581049. The next prime is 2581079. The reversal of 2581069 is 9601852.

2581069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2518569 + 62500 = 1587^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 2581069 - 2¹³ = 2572877 is a prime.

It is a super-2 number, since 2×2581069² = 13323834365522, which contains 22 as substring.

It is a Chen prime.

It is equal to p₁₈₈₅₉₀ and since 2581069 and 188590 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2581069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2581049) 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, 1290534 + 1290535.

It is an arithmetic number, because the mean of its divisors is an integer number (1290535).

2^2581069 is an apocalyptic number.

It is an amenable number.

2581069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2581069 is an equidigital number, since it uses as much as digits as its factorization.

2581069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2581069 is about 1606.5705711235. The cubic root of 2581069 is about 137.1723371542.

The spelling of 2581069 in words is "two million, five hundred eighty-one thousand, sixty-nine".