68530113 has 12 divisors (see below), whose sum is σ = 100856340. Its totient is φ = 44824416.

The previous prime is 68530097. The next prime is 68530117. The reversal of 68530113 is 31103586.

It can be written as a sum of positive squares in 2 ways, for example, as 22724289 + 45805824 = 4767^2 + 6768^2 .

It is not a de Polignac number, because 68530113 - 2⁴ = 68530097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68530117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71358 + ... + 72311.

It is an arithmetic number, because the mean of its divisors is an integer number (8404695).

Almost surely, 2^68530113 is an apocalyptic number.

It is an amenable number.

68530113 is a deficient number, since it is larger than the sum of its proper divisors (32326227).

68530113 is a wasteful number, since it uses less digits than its factorization.

68530113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143728 (or 143725 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 68530113 is about 8278.2916715951. The cubic root of 68530113 is about 409.2234219472.

Adding to 68530113 its reverse (31103586), we get a palindrome (99633699).

The spelling of 68530113 in words is "sixty-eight million, five hundred thirty thousand, one hundred thirteen".