2305145 has 8 divisors (see below), whose sum is σ = 2776200. Its totient is φ = 1837440.

The previous prime is 2305133. The next prime is 2305153. The reversal of 2305145 is 5415032.

2305145 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 4 ways, for example, as 952576 + 1352569 = 976^2 + 1163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2305145 - 2¹² = 2301049 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1085 + ... + 2405.

It is an arithmetic number, because the mean of its divisors is an integer number (347025).

2^2305145 is an apocalyptic number.

It is an amenable number.

2305145 is a deficient number, since it is larger than the sum of its proper divisors (471055).

2305145 is a wasteful number, since it uses less digits than its factorization.

2305145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 2305145 is about 1518.2703975248. The cubic root of 2305145 is about 132.0989654221.

The spelling of 2305145 in words is "two million, three hundred five thousand, one hundred forty-five".