2305197 has 6 divisors (see below), whose sum is σ = 3329742. Its totient is φ = 1536792.

The previous prime is 2305169. The next prime is 2305271. The reversal of 2305197 is 7915032.

2305197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1687401 + 617796 = 1299^2 + 786^2 .

It is not a de Polignac number, because 2305197 - 2⁶ = 2305133 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2305197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2305117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128058 + ... + 128075.

It is an arithmetic number, because the mean of its divisors is an integer number (554957).

2^2305197 is an apocalyptic number.

It is an amenable number.

2305197 is a deficient number, since it is larger than the sum of its proper divisors (1024545).

2305197 is a wasteful number, since it uses less digits than its factorization.

2305197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256139 (or 256136 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2305197 is about 1518.2875221775. The cubic root of 2305197 is about 132.0999587211.

The spelling of 2305197 in words is "two million, three hundred five thousand, one hundred ninety-seven".