2101297 has 4 divisors (see below), whose sum is σ = 2292336. Its totient is φ = 1910260.

The previous prime is 2101283. The next prime is 2101313. The reversal of 2101297 is 7921012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2101297 - 2¹¹ = 2099249 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95503 + ... + 95524.

It is an arithmetic number, because the mean of its divisors is an integer number (573084).

2^2101297 is an apocalyptic number.

It is an amenable number.

2101297 is a deficient number, since it is larger than the sum of its proper divisors (191039).

2101297 is a wasteful number, since it uses less digits than its factorization.

2101297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191038.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 2101297 is about 1449.5851130582. The cubic root of 2101297 is about 128.0842747425.

The spelling of 2101297 in words is "two million, one hundred one thousand, two hundred ninety-seven".