2152106 has 12 divisors (see below), whose sum is σ = 3548706. Its totient is φ = 978120.

The previous prime is 2152103. The next prime is 2152123. The reversal of 2152106 is 6012512.

It can be written as a sum of positive squares in only one way, i.e., 2076481 + 75625 = 1441^2 + 275^2 .

It is not an unprimeable number, because it can be changed into a prime (2152103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4205 + ... + 4688.

2^2152106 is an apocalyptic number.

2152106 is a deficient number, since it is larger than the sum of its proper divisors (1396600).

2152106 is a wasteful number, since it uses less digits than its factorization.

2152106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8917 (or 8906 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2152106 is about 1467.0057941263. The cubic root of 2152106 is about 129.1084159590.

Subtracting from 2152106 its sum of digits (17), we obtain a square (2152089 = 1467²).

Adding to 2152106 its reverse (6012512), we get a palindrome (8164618).

The spelling of 2152106 in words is "two million, one hundred fifty-two thousand, one hundred six".