2685149 has 8 divisors (see below), whose sum is σ = 2773440. Its totient is φ = 2598400.

The previous prime is 2685121. The next prime is 2685169. The reversal of 2685149 is 9415862.

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 2685149 - 2⁸ = 2684893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3869 + ... + 4509.

It is an arithmetic number, because the mean of its divisors is an integer number (346680).

2^2685149 is an apocalyptic number.

It is an amenable number.

2685149 is a deficient number, since it is larger than the sum of its proper divisors (88291).

2685149 is an equidigital number, since it uses as much as digits as its factorization.

2685149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its digits is 17280, while the sum is 35.

The square root of 2685149 is about 1638.6424259124. The cubic root of 2685149 is about 138.9918909059.

It can be divided in two parts, 2685 and 149, that multiplied together give a triangular number (400065 = T₈₉₄).

The spelling of 2685149 in words is "two million, six hundred eighty-five thousand, one hundred forty-nine".