2123185 has 8 divisors (see below), whose sum is σ = 2610216. Its totient is φ = 1656960.

The previous prime is 2123167. The next prime is 2123203. The reversal of 2123185 is 5813212.

It is an interprime number because it is at equal distance from previous prime (2123167) and next prime (2123203).

It can be written as a sum of positive squares in 4 ways, for example, as 3249 + 2119936 = 57^2 + 1456^2 .

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

It is not a de Polignac number, because 2123185 - 2¹⁹ = 1598897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4974 + ... + 5383.

It is an arithmetic number, because the mean of its divisors is an integer number (326277).

2^2123185 is an apocalyptic number.

It is an amenable number.

2123185 is a deficient number, since it is larger than the sum of its proper divisors (487031).

2123185 is a wasteful number, since it uses less digits than its factorization.

2123185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10403.

The product of its digits is 480, while the sum is 22.

The square root of 2123185 is about 1457.1153008599. The cubic root of 2123185 is about 128.5274661572.

Adding to 2123185 its reverse (5813212), we get a palindrome (7936397).

It can be divided in two parts, 21231 and 85, that added together give a square (21316 = 146²).

The spelling of 2123185 in words is "two million, one hundred twenty-three thousand, one hundred eighty-five".