2315228681 has 4 divisors (see below), whose sum is σ = 2319983232. Its totient is φ = 2310474132.

The previous prime is 2315228647. The next prime is 2315228719. The reversal of 2315228681 is 1868225132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315228681 is a prime.

It is a super-2 number, since 2×2315228681² = 10720567690649999522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315228281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2376545 + ... + 2377518.

It is an arithmetic number, because the mean of its divisors is an integer number (579995808).

Almost surely, 2^2315228681 is an apocalyptic number.

It is an amenable number.

2315228681 is a deficient number, since it is larger than the sum of its proper divisors (4754551).

2315228681 is an equidigital number, since it uses as much as digits as its factorization.

2315228681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754550.

The product of its digits is 46080, while the sum is 38.

The square root of 2315228681 is about 48116.8232638024. The cubic root of 2315228681 is about 1322.9130418697.

The spelling of 2315228681 in words is "two billion, three hundred fifteen million, two hundred twenty-eight thousand, six hundred eighty-one".