2105156 has 6 divisors (see below), whose sum is σ = 3684030. Its totient is φ = 1052576.

The previous prime is 2105149. The next prime is 2105183. The reversal of 2105156 is 6515012.

It can be written as a sum of positive squares in only one way, i.e., 1932100 + 173056 = 1390^2 + 416^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263141 + ... + 263148.

It is an arithmetic number, because the mean of its divisors is an integer number (614005).

2^2105156 is an apocalyptic number.

It is an amenable number.

2105156 is a deficient number, since it is larger than the sum of its proper divisors (1578874).

2105156 is a wasteful number, since it uses less digits than its factorization.

2105156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526293 (or 526291 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2105156 is about 1450.9155730090. The cubic root of 2105156 is about 128.1626350674.

The spelling of 2105156 in words is "two million, one hundred five thousand, one hundred fifty-six".