2231315 has 4 divisors (see below), whose sum is σ = 2677584. Its totient is φ = 1785048.

The previous prime is 2231311. The next prime is 2231329. The reversal of 2231315 is 5131322.

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 2231315 - 2² = 2231311 is a prime.

It is a super-3 number, since 3×2231315³ = 33327589983867542625, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231293 and 2231302.

It is not an unprimeable number, because it can be changed into a prime (2231311) 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, 223127 + ... + 223136.

It is an arithmetic number, because the mean of its divisors is an integer number (669396).

2^2231315 is an apocalyptic number.

2231315 is a deficient number, since it is larger than the sum of its proper divisors (446269).

2231315 is an equidigital number, since it uses as much as digits as its factorization.

2231315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446268.

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

The square root of 2231315 is about 1493.7586819831. The cubic root of 2231315 is about 130.6733309399.

Adding to 2231315 its reverse (5131322), we get a palindrome (7362637).

The spelling of 2231315 in words is "two million, two hundred thirty-one thousand, three hundred fifteen".