68299231 has 48 divisors (see below), whose sum is σ = 96090624. Its totient is φ = 46872000.

The previous prime is 68299207. The next prime is 68299237. The reversal of 68299231 is 13299286.

It is a happy number.

It is not a de Polignac number, because 68299231 - 2⁷ = 68299103 is a prime.

It is a super-2 number, since 2×68299231² = 9329569910382722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68299237) 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 47 ways as a sum of consecutive naturals, for example, 961926 + ... + 961996.

It is an arithmetic number, because the mean of its divisors is an integer number (2001888).

Almost surely, 2^68299231 is an apocalyptic number.

68299231 is a deficient number, since it is larger than the sum of its proper divisors (27791393).

68299231 is a wasteful number, since it uses less digits than its factorization.

68299231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 133 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 68299231 is about 8264.3348794685. The cubic root of 68299231 is about 408.7633389145.

Subtracting from 68299231 its reverse (13299286), we obtain a palindrome (54999945).

The spelling of 68299231 in words is "sixty-eight million, two hundred ninety-nine thousand, two hundred thirty-one".