2137085 has 4 divisors (see below), whose sum is σ = 2564508. Its totient is φ = 1709664.

The previous prime is 2137073. The next prime is 2137117. The reversal of 2137085 is 5807312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1026169 + 1110916 = 1013^2 + 1054^2 .

It is a cyclic number.

It is not a de Polignac number, because 2137085 - 2⁶ = 2137021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 213704 + ... + 213713.

It is an arithmetic number, because the mean of its divisors is an integer number (641127).

2^2137085 is an apocalyptic number.

It is an amenable number.

2137085 is a deficient number, since it is larger than the sum of its proper divisors (427423).

2137085 is an equidigital number, since it uses as much as digits as its factorization.

2137085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427422.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2137085 is about 1461.8772178264. The cubic root of 2137085 is about 128.8073361368.

It can be divided in two parts, 2 and 137085, that multiplied together give a triangular number (274170 = T₇₄₀).

The spelling of 2137085 in words is "two million, one hundred thirty-seven thousand, eighty-five".