2152186 has 8 divisors (see below), whose sum is σ = 3272724. Its totient is φ = 1061280.

The previous prime is 2152169. The next prime is 2152201. The reversal of 2152186 is 6812512.

It can be written as a sum of positive squares in 2 ways, for example, as 1907161 + 245025 = 1381^2 + 495^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2152186.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7225 + ... + 7516.

2^2152186 is an apocalyptic number.

2152186 is a deficient number, since it is larger than the sum of its proper divisors (1120538).

2152186 is a wasteful number, since it uses less digits than its factorization.

2152186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14816.

The product of its digits is 960, while the sum is 25.

The square root of 2152186 is about 1467.0330602955. The cubic root of 2152186 is about 129.1100157168.

Adding to 2152186 its reverse (6812512), we get a palindrome (8964698).

It can be divided in two parts, 215 and 2186, that added together give a 4-th power (2401 = 7⁴).

The spelling of 2152186 in words is "two million, one hundred fifty-two thousand, one hundred eighty-six".