2085261 has 4 divisors (see below), whose sum is σ = 2780352. Its totient is φ = 1390172.

The previous prime is 2085257. The next prime is 2085287. The reversal of 2085261 is 1625802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2085261 - 2² = 2085257 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085221) 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 3 ways as a sum of consecutive naturals, for example, 347541 + ... + 347546.

It is an arithmetic number, because the mean of its divisors is an integer number (695088).

2^2085261 is an apocalyptic number.

It is an amenable number.

2085261 is a deficient number, since it is larger than the sum of its proper divisors (695091).

2085261 is an equidigital number, since it uses as much as digits as its factorization.

2085261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695090.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 2085261 is about 1444.0432818998. The cubic root of 2085261 is about 127.7576182997.

It can be divided in two parts, 2085 and 261, that added together give a triangular number (2346 = T₆₈).

The spelling of 2085261 in words is "two million, eighty-five thousand, two hundred sixty-one".