2312705 has 4 divisors (see below), whose sum is σ = 2775252. Its totient is φ = 1850160.

The previous prime is 2312701. The next prime is 2312707. The reversal of 2312705 is 5072132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 591361 + 1721344 = 769^2 + 1312^2 .

It is not a de Polignac number, because 2312705 - 2² = 2312701 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231266 + ... + 231275.

It is an arithmetic number, because the mean of its divisors is an integer number (693813).

2^2312705 is an apocalyptic number.

It is an amenable number.

2312705 is a deficient number, since it is larger than the sum of its proper divisors (462547).

2312705 is an equidigital number, since it uses as much as digits as its factorization.

2312705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462546.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2312705 is about 1520.7580346656. The cubic root of 2312705 is about 132.2432193140.

Adding to 2312705 its reverse (5072132), we get a palindrome (7384837).

The spelling of 2312705 in words is "two million, three hundred twelve thousand, seven hundred five".