2085951 has 16 divisors (see below), whose sum is σ = 3366144. Its totient is φ = 1121664.

The previous prime is 2085947. The next prime is 2085971. The reversal of 2085951 is 1595802.

It is not a de Polignac number, because 2085951 - 2² = 2085947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2565 + ... + 3278.

It is an arithmetic number, because the mean of its divisors is an integer number (210384).

2^2085951 is an apocalyptic number.

2085951 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2085951 is a deficient number, since it is larger than the sum of its proper divisors (1280193).

2085951 is a wasteful number, since it uses less digits than its factorization.

2085951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5870.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 2085951 is about 1444.2821746459. The cubic root of 2085951 is about 127.7717081483.

It can be divided in two parts, 20859 and 51, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 2085951 in words is "two million, eighty-five thousand, nine hundred fifty-one".