2100195 has 32 divisors (see below), whose sum is σ = 3824640. Its totient is φ = 1092960.

The previous prime is 2100193. The next prime is 2100221. The reversal of 2100195 is 5910012.

It is not a de Polignac number, because 2100195 - 2¹ = 2100193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6180 + ... + 6510.

It is an arithmetic number, because the mean of its divisors is an integer number (119520).

2^2100195 is an apocalyptic number.

2100195 is a deficient number, since it is larger than the sum of its proper divisors (1724445).

2100195 is a wasteful number, since it uses less digits than its factorization.

2100195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 2100195 is about 1449.2049544492. The cubic root of 2100195 is about 128.0618800735.

The spelling of 2100195 in words is "two million, one hundred thousand, one hundred ninety-five".