1568340231 has 16 divisors (see below), whose sum is σ = 2100172800. Its totient is φ = 1041045408.

The previous prime is 1568340217. The next prime is 1568340233. The reversal of 1568340231 is 1320438651.

It is not a de Polignac number, because 1568340231 - 2⁹ = 1568339719 is a prime.

It is a super-2 number, since 2×1568340231² = 4919382160346266722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1568340192 and 1568340201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1568340233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890730 + ... + 892488.

It is an arithmetic number, because the mean of its divisors is an integer number (131260800).

Almost surely, 2^1568340231 is an apocalyptic number.

1568340231 is a deficient number, since it is larger than the sum of its proper divisors (531832569).

1568340231 is a wasteful number, since it uses less digits than its factorization.

1568340231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1568340231 is about 39602.2755785574. The cubic root of 1568340231 is about 1161.8411682286.

Adding to 1568340231 its reverse (1320438651), we get a palindrome (2888778882).

The spelling of 1568340231 in words is "one billion, five hundred sixty-eight million, three hundred forty thousand, two hundred thirty-one".