2315745 has 12 divisors (see below), whose sum is σ = 4014036. Its totient is φ = 1235040.

The previous prime is 2315707. The next prime is 2315759. The reversal of 2315745 is 5475132.

It is a happy number.

2315745 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 2 ways, for example, as 904401 + 1411344 = 951^2 + 1188^2 .

It is not a de Polignac number, because 2315745 - 2⁹ = 2315233 is a prime.

2315745 is a lucky 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 11 ways as a sum of consecutive naturals, for example, 25686 + ... + 25775.

It is an arithmetic number, because the mean of its divisors is an integer number (334503).

2^2315745 is an apocalyptic number.

It is an amenable number.

2315745 is a deficient number, since it is larger than the sum of its proper divisors (1698291).

2315745 is a wasteful number, since it uses less digits than its factorization.

2315745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51472 (or 51469 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 2315745 is about 1521.7572079672. The cubic root of 2315745 is about 132.3011375478.

The spelling of 2315745 in words is "two million, three hundred fifteen thousand, seven hundred forty-five".