2131085 has 8 divisors (see below), whose sum is σ = 2789856. Its totient is φ = 1549840.

The previous prime is 2131081. The next prime is 2131093. The reversal of 2131085 is 5801312.

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

It is not a de Polignac number, because 2131085 - 2² = 2131081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19319 + ... + 19428.

It is an arithmetic number, because the mean of its divisors is an integer number (348732).

2^2131085 is an apocalyptic number.

It is an amenable number.

2131085 is a deficient number, since it is larger than the sum of its proper divisors (658771).

2131085 is a wasteful number, since it uses less digits than its factorization.

2131085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38763.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2131085 is about 1459.8236194828. The cubic root of 2131085 is about 128.6866782599.

Adding to 2131085 its reverse (5801312), we get a palindrome (7932397).

The spelling of 2131085 in words is "two million, one hundred thirty-one thousand, eighty-five".