2313215 has 4 divisors (see below), whose sum is σ = 2775864. Its totient is φ = 1850568.

The previous prime is 2313211. The next prime is 2313239. The reversal of 2313215 is 5123132.

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 2313215 - 2² = 2313211 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2313193 and 2313202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231317 + ... + 231326.

It is an arithmetic number, because the mean of its divisors is an integer number (693966).

2^2313215 is an apocalyptic number.

2313215 is a deficient number, since it is larger than the sum of its proper divisors (462649).

2313215 is an equidigital number, since it uses as much as digits as its factorization.

2313215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462648.

The product of its digits is 180, while the sum is 17.

The square root of 2313215 is about 1520.9257049573. The cubic root of 2313215 is about 132.2529394015.

Adding to 2313215 its reverse (5123132), we get a palindrome (7436347).

The spelling of 2313215 in words is "two million, three hundred thirteen thousand, two hundred fifteen".