2316515 has 4 divisors (see below), whose sum is σ = 2779824. Its totient is φ = 1853208.

The previous prime is 2316511. The next prime is 2316521. The reversal of 2316515 is 5156132.

2316515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2316515 - 2² = 2316511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2316511) 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 3 ways as a sum of consecutive naturals, for example, 231647 + ... + 231656.

It is an arithmetic number, because the mean of its divisors is an integer number (694956).

2^2316515 is an apocalyptic number.

2316515 is a deficient number, since it is larger than the sum of its proper divisors (463309).

2316515 is an equidigital number, since it uses as much as digits as its factorization.

2316515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463308.

The product of its digits is 900, while the sum is 23.

The square root of 2316515 is about 1522.0101839344. The cubic root of 2316515 is about 132.3157995805.

It can be divided in two parts, 2316 and 515, that multiplied together give a triangular number (1192740 = T₁₅₄₄).

The spelling of 2316515 in words is "two million, three hundred sixteen thousand, five hundred fifteen".