2782145 has 8 divisors (see below), whose sum is σ = 3395520. Its totient is φ = 2187760.

The previous prime is 2782139. The next prime is 2782147. The reversal of 2782145 is 5412872.

2782145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2782145 - 2⁶ = 2782081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2782147) 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 in 7 ways as a sum of consecutive naturals, for example, 4421 + ... + 5010.

It is an arithmetic number, because the mean of its divisors is an integer number (424440).

2^2782145 is an apocalyptic number.

It is an amenable number.

2782145 is a deficient number, since it is larger than the sum of its proper divisors (613375).

2782145 is an equidigital number, since it uses as much as digits as its factorization.

2782145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9495.

The product of its digits is 4480, while the sum is 29.

The square root of 2782145 is about 1667.9763187767. The cubic root of 2782145 is about 140.6457414673.

The spelling of 2782145 in words is "two million, seven hundred eighty-two thousand, one hundred forty-five".